diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multipred.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multipred.aql
index bd21ab0..03cbf24 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multipred.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multipred.aql
@@ -31,14 +31,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index title_index on DBLP(title);
 
 write output to nc1:"rttest/btree-index-join_title-secondary-equi-join-multipred.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_01.aql
index c861e3f..e07eee5 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_01.aql
@@ -29,14 +29,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index title_index on DBLP(title);
 
 write output to nc1:"rttest/btree-index-join_title-secondary-equi-join_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_02.aql
index 1f07316..2546244 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_02.aql
@@ -29,14 +29,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index title_index on CSX(title);
 
 write output to nc1:"rttest/btree-index-join_title-secondary-equi-join_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_03.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_03.aql
index cd3d964..251c88e 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_03.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index title_index on DBLP(title);
 
 write output to nc1:"rttest/btree-index-join_title-secondary-equi-join_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-01.aql
index 45942c6..d3d8d69 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-01.aql
@@ -21,14 +21,6 @@
 // create internal dataset with primary index (composite key) defined on fname,lname fields
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-// load valid data with fname and lname entries
-
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
-// Query the data that was loaded above. 
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Roger"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-02.aql
index c12fcf5..eeded38 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-02.aql
@@ -21,14 +21,6 @@
 // create internal dataset with primary index defined on fname,lname fields
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-// load valid data with fname and lname entries
-
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
-// Query the data that was loaded above. 
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Susan"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-03.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-03.aql
index 1df918a..1046edd 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-03.aql
@@ -21,14 +21,6 @@
 // create internal dataset with primary index defined on fname,lname fields
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-// load valid data with fname and lname entries
-
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
-// Query the data that was loaded above. 
-
 for $emp in dataset('testdst') 
 where $emp.fname < "Isa"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-04.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-04.aql
index 8dc90af..2bee1fe 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-04.aql
@@ -21,14 +21,6 @@
 // create internal dataset with primary index defined on fname,lname fields
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-// load valid data with fname and lname entries
-
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
-// Query the data that was loaded above. 
-
 for $emp in dataset('testdst') 
 where $emp.fname <= "Vanpatten"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-05.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-05.aql
index 33d2b39..0423290 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-05.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-05.aql
@@ -21,14 +21,6 @@
 // create internal dataset with primary index defined on fname,lname fields
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-// load valid data with fname and lname entries
-
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
-// Query the data that was loaded above. 
-
 for $emp in dataset('testdst') 
 where $emp.fname != "Max"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-06.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-06.aql
index 0136fb8..313a4fa 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-06.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-06.aql
@@ -21,14 +21,6 @@
 // create internal dataset with primary index defined on fname,lname fields
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-// load valid data with fname and lname entries
-
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
-// Query the data that was loaded above. 
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Julio"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-07.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-07.aql
index e982a01..e9063eb 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-07.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-07.aql
@@ -22,14 +22,6 @@
 // create internal dataset with primary index defined on fname,lname fields
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-// load valid data with fname and lname entries
-
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
-// Query the data that was loaded above. 
-
 for $emp in dataset('testdst') 
 where $emp.lname = "Kim"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-08.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-08.aql
index fd0717d..9919457 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-08.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-08.aql
@@ -17,10 +17,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Young Seok" and $emp.lname = "Kim"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-09.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-09.aql
index 7f97296..8973d2d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-09.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-09.aql
@@ -21,10 +21,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Julio" or $emp.lname = "Malaika"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-10.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-10.aql
index 2cd2218..5076e97 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-10.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-10.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Alex" and $emp.lname < "Zach"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-11.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-11.aql
index 6f44e0d..feeaaad 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-11.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-11.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Allan" and $emp.lname < "Zubi"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-12.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-12.aql
index decb330..740cca6 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-12.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-12.aql
@@ -21,10 +21,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Allan" and $emp.lname = "Xu"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-13.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-13.aql
index 23207de..47e81b2 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-13.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-13.aql
@@ -21,10 +21,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Julio" and $emp.lname < "Xu"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-14.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-14.aql
index 6b40be8..0ec31aa 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-14.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-14.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Michael" and $emp.lname <= "Xu"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-15.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-15.aql
index 0d81301..f595804 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-15.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-15.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-16.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-16.aql
index 1abe1c1..022bd50 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-16.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-16.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Craig" and $emp.lname >= "Kevin" and $emp.fname <= "Mary" and $emp.lname <= "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-17.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-17.aql
index 3b1a5dd..ad114cd 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-17.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-17.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname <= "Craig" and $emp.lname > "Kevin"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-18.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-18.aql
index b298fdb6..43b0bd3 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-18.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-18.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname != "Michael" and $emp.lname != "Carey"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-19.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-19.aql
index cf80f32..fe2dc41 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-19.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-19.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname <= "Mary" and $emp.lname <= "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-20.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-20.aql
index fd2896c..c817492 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-20.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-20.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname,lname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Craig" and $emp.lname >= "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-21.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-21.aql
index d1ff718..46c107c 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-21.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-21.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Max" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-22.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-22.aql
index 6d02379..0f74980 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-22.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-22.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Sofia" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-23.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-23.aql
index 295a37e..c942165 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-23.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-23.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname < "Chen" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-24.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-24.aql
index 9306a41..0c66008 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-24.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-24.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname <= "Julio" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-25.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-25.aql
index 6efe596..770baf5 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-25.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-25.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Neil" and $emp.fname < "Roger" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-26.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-26.aql
index ee02059..ba5de37 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-26.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-26.aql
@@ -19,10 +19,6 @@
 
 create dataset testdst(TestType) partitioned by key fname;
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Max" and $emp.fname <= "Roger" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-31.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-31.aql
index ae17445..5117da4 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-31.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-31.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Roger"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-32.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-32.aql
index 24c1f04..37b46b3 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-32.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-32.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Susan"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-33.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-33.aql
index 62dff29..8f1b4d5 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-33.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-33.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname < "Isa"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-34.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-34.aql
index 3f24cad..5042bd9 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-34.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-34.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname <= "Vanpatten"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-35.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-35.aql
index ca63c2b..2e38330 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-35.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-35.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname != "Max"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql
index 2d45593..84bdcd49 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Julio"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-37.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-37.aql
index 446ec4c..73133c2 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-37.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-37.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.lname = "Kim"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-38.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-38.aql
index 8f902e8..3f844ee 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-38.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-38.aql
@@ -21,10 +21,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Young Seok" and $emp.lname = "Kim"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql
index f63b9f0..3813e48 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Julio" or $emp.lname = "Malaika"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-40.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-40.aql
index 797f3a8..4e13597 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-40.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-40.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Alex" and $emp.lname < "Zach"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-41.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-41.aql
index 4f7d1ed..c724cbe 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-41.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-41.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Allan" and $emp.lname < "Zubi"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-42.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-42.aql
index 3f5946a..06c93b0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-42.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-42.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Allan" and $emp.lname = "Xu"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-43.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-43.aql
index 0524ce4..490becb 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-43.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-43.aql
@@ -24,10 +24,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Julio" and $emp.lname < "Xu"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-44.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-44.aql
index 0666846..f75f3de 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-44.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-44.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Michael" and $emp.lname <= "Xu"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-45.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-45.aql
index 9d1024f..6717780 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-45.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-45.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-46.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-46.aql
index 867c59a..8a508b3 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-46.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-46.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Craig" and $emp.lname >= "Kevin" and $emp.fname <= "Mary" and $emp.lname <= "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-47.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-47.aql
index ea92628..70e8185 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-47.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-47.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname <= "Craig" and $emp.lname > "Kevin"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-48.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-48.aql
index 98d0ffb..bb6f24d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-48.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-48.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname != "Michael" and $emp.lname != "Carey"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-49.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-49.aql
index 2c6b756..6d11235 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-49.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-49.aql
@@ -23,10 +23,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname <= "Mary" and $emp.lname <= "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-50.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-50.aql
index 489319f..3a91c09 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-50.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-50.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Craig" and $emp.lname >= "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-51.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-51.aql
index 246c071..3be3875 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-51.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-51.aql
@@ -22,10 +22,6 @@
 
 create index sec_Idx on testdst(fname,lname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst')
 where $emp.fname >= "Craig" and $emp.lname <= "Kevin" and $emp.fname <= "Mary" and $emp.lname >= "Tomes"
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-52.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-52.aql
index 769c8c1..7b52ec9 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-52.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-52.aql
@@ -21,10 +21,6 @@
 
 create index sec_Idx on testdst(fname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Max" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-53.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-53.aql
index 606ab5b..45536b5 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-53.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-53.aql
@@ -21,10 +21,6 @@
 
 create index sec_Idx on testdst(fname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Sofia" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-54.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-54.aql
index ab4c669..f1a3cb5 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-54.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-54.aql
@@ -21,10 +21,6 @@
 
 create index sec_Idx on testdst(fname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname < "Chen" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-55.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-55.aql
index 1df8b0f..bbeca00 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-55.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-55.aql
@@ -21,10 +21,6 @@
 
 create index sec_Idx on testdst(fname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname <= "Julio" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-56.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-56.aql
index 2279f5a..7ecfea9 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-56.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-56.aql
@@ -21,10 +21,6 @@
 
 create index sec_Idx on testdst(fname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname > "Neil" and $emp.fname < "Roger" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-57.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-57.aql
index 8f98736..2183f69 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-57.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-57.aql
@@ -21,10 +21,6 @@
 
 create index sec_Idx on testdst(fname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname >= "Max" and $emp.fname <= "Roger" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-58.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-58.aql
index 42f49e6..bdf16b6 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-58.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-58.aql
@@ -21,10 +21,6 @@
 
 create index sec_Idx on testdst(fname);
 
-load dataset testdst
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/id-fn-ln.adm"),("format"="delimited-text"),("delimiter"="|"));
-
 for $emp in dataset('testdst') 
 where $emp.fname = "Max" 
 return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains-panic.aql
index 66ef43b..31c0d03 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains-panic.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains-panic.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-contains-panic.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains.aql
index 0aa8056..9851cd8 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-contains.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check-panic.aql
index 21e41f8..4608aeb 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check-panic.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check-panic.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance-check-panic.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check.aql
index ff3728d..7b264b7 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance-check.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-panic.aql
index c993c57..9412cf3 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-panic.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-panic.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance-panic.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance.aql
index a143cde..d6be7d4 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-edit-distance.aql
index 87de1fb..b241311 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-edit-distance.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-edit-distance.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-fuzzyeq-edit-distance.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-jaccard.aql
index 3db4c92..33f9d5a 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-jaccard.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-jaccard.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-fuzzyeq-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard-check.aql
index c39d531..376415f 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard-check.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard-check.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-jaccard-check.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard.aql
index 3855ade..ef7143a 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-basic_ngram-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check-panic.aql
index 6a6700a..8209572 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check-panic.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check-panic.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_olist-edit-distance-check-panic.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check.aql
index f705a4a..b55a516 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_olist-edit-distance-check.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-panic.aql
index 1fc7906..63bead1 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-panic.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-panic.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_olist-edit-distance-panic.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance.aql
index 70268f5..7958fb4 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_olist-edit-distance.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-edit-distance.aql
index 90ce266..f156bd2 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-edit-distance.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-edit-distance.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_olist-fuzzyeq-edit-distance.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-jaccard.aql
index 09da02e..6632189 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-jaccard.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-jaccard.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_olist-fuzzyeq-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard-check.aql
index 18721c5..61dcc7f 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard-check.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard-check.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_olist-jaccard-check.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard.aql
index fa2291c..7af2161 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_olist-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-fuzzyeq-jaccard.aql
index 89c2dac..d65a517 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-fuzzyeq-jaccard.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-fuzzyeq-jaccard.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_ulist-fuzzyeq-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard-check.aql
index 8089d6d..9551294 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard-check.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard-check.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_ulist-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard.aql
index 547f7e2..6580bd0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_ulist-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-contains.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-contains.aql
index 0b5367b..eee681a 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-contains.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-contains.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_word-contains.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-fuzzyeq-jaccard.aql
index 39b247d..fb6d0e8 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-fuzzyeq-jaccard.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-fuzzyeq-jaccard.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_word-fuzzyeq-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard-check.aql
index f1d3d4b..10ca5ce 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard-check.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard-check.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_word-jaccard-check.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard.aql
index 16fb8d3..7f544b6 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-basic_word-jaccard.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.aql
index 8c9500f..4d6bfd9 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let-panic-nopanic_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.aql
index 55bd024..a4d4163 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let-panic-nopanic_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic.aql
index 458425f..d6f58fc 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let-panic.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let.aql
index f5c9a18..24d3202 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-let.aql
index 5d3758e..de57848 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-let.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-let.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-complex_ngram-jaccard-check-let.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-multi-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-multi-let.aql
index 30d97b8..2eed598 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-multi-let.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-multi-let.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-complex_ngram-jaccard-check-multi-let.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let-panic.aql
index 51e66a1..337eced 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let-panic.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let-panic.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-complex_olist-edit-distance-check-let-panic.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let.aql
index 2d6c4cd..c3be0bd 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-complex_olist-edit-distance-check-let.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-jaccard-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-jaccard-check-let.aql
index ff9d8e6..0652131 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-jaccard-check-let.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-jaccard-check-let.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-complex_olist-jaccard-check-let.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ulist-jaccard-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ulist-jaccard-check-let.aql
index 57d9244..5a3b329 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ulist-jaccard-check-let.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ulist-jaccard-check-let.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-complex_ulist-jaccard-check-let.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-let.aql
index f79e10f..2c45ea8 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-let.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-let.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-complex_word-jaccard-check-let.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-multi-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-multi-let.aql
index 465cb51..8f8f014 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-multi-let.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-multi-let.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-complex_word-jaccard-check-multi-let.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_01.aql
index d802dc5..f9cc7e9 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-edit-distance-check_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_02.aql
index 01003f9..011afea 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on CSX(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-edit-distance-check_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_03.aql
index 890dfa9..649c3b6 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_03.aql
@@ -15,11 +15,8 @@
   authors: string,
   misc: string
 }
-create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+create dataset DBLP(DBLPType) partitioned by key id;
 
 create index ngram_index on DBLP(authors) type ngram(3);
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_04.aql
index 35aa124..e6a3c56 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_04.aql
@@ -16,11 +16,8 @@
   authors: string,
   misc: string
 }
-create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+create dataset DBLP(DBLPType) partitioned by key id;
 
 create index ngram_index on DBLP(authors) type ngram(3);
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_01.aql
index 76622d9..a94e84f 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-edit-distance_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_02.aql
index 4298db1..61edf5c 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on CSX(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-edit-distance_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_03.aql
index 72ca9d0..6c61de1 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_03.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-edit-distance_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_04.aql
index e33e92c..5925f47 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_04.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-edit-distance_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_01.aql
index 14a4420..f6dd893 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on CSX(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-edit-distance_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_02.aql
index 2ad1f2b..d9822aa 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-edit-distance_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_03.aql
index 640b6e1..0431a6c 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_03.aql
@@ -17,10 +17,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(authors) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-edit-distance_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_01.aql
index 55af0e4..933e5d0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_02.aql
index c00726e..1213935 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on CSX(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_03.aql
index 9d2ce15..70c7640 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_03.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_01.aql
index cb5f92c..4d7939a 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-jaccard-check_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_02.aql
index 8f487ed..e0acebb 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on CSX(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-jaccard-check_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_03.aql
index 9c57be6..808965d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_03.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-jaccard-check_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_04.aql
index 13c0625..e66cdc5 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_04.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-jaccard-check_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_01.aql
index 14b52fb..a28a6af 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_02.aql
index 4c51967..a4ff58d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index ngram_index on CSX(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_03.aql
index cd84d30..1a90cf9 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_03.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_04.aql
index 5d3eeef..7be6773 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_04.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index ngram_index on DBLP(title) type ngram(3);
 
 write output to nc1:"rttest/inverted-index-join_ngram-jaccard_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_01.aql
index b4f8b56..84d2f45 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-edit-distance-check_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_02.aql
index db47ed6b..b0ec650 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-edit-distance-check_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_03.aql
index d97c003..03a1a3f 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-edit-distance-check_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_04.aql
index 7b2c0df..e7814af 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_04.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-edit-distance-check_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_01.aql
index 4047e55..ac25ac2 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-edit-distance_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_02.aql
index 5745565..a160c4d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-edit-distance_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_03.aql
index fc3fc4a..dba92b9 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-edit-distance_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_04.aql
index 10763e3..4835727 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_04.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-edit-distance_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_01.aql
index bf2b8bc..1dddf5e 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_02.aql
index 5314b95..15b1001 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_03.aql
index 15a9ab7..af4814f 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_01.aql
index ffb9b8a..2b46707 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_02.aql
index f94fb85..4f188dd 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_03.aql
index 669c336..05cf635 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_01.aql
index 63ff85c..60fc705 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-jaccard-check_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_02.aql
index b708069..9cdb78b 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-jaccard-check_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_03.aql
index 21932ef..b1c4d68 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-jaccard-check_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_04.aql
index e3c03f8..a1e1478 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_04.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-jaccard-check_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_01.aql
index c519be9..cabdac1 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_02.aql
index 7cd595a..49a7411 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_03.aql
index c7ad4c4..639d782 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_04.aql
index 748783c..c3e34b0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_04.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_olist-jaccard_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_01.aql
index 74d043e..c19ce47 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-fuzzyeq-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_02.aql
index da1ebe9..6e3a274 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-fuzzyeq-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_03.aql
index 283d80a..396af09 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-fuzzyeq-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_01.aql
index 7f5e92d..8792dd2 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-jaccard-check_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_02.aql
index d367bb8..185df97 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-jaccard-check_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_03.aql
index 0bdd09e..4d2b2e7 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-jaccard-check_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_04.aql
index 0a43b01..acf4d71 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_04.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-jaccard-check_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_01.aql
index 8188e07..0d5ad31 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_01.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_02.aql
index ba64230..8ac631e 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_02.aql
@@ -27,14 +27,6 @@
   
 create dataset Customers2(CustomerType) partitioned by key cid;
 
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
-load dataset Customers2
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers2(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_03.aql
index 5007579..94aedbb 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_03.aql
@@ -25,10 +25,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_04.aql
index e984c7f..e30fbcf 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_04.aql
@@ -26,10 +26,6 @@
 
 create dataset Customers(CustomerType) partitioned by key cid;
   
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
-
 create index interests_index on Customers(interests) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_ulist-jaccard_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_01.aql
index 6ea53e9..8438509 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-fuzzyeq-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_02.aql
index 254a825..6f6c5f6 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index keyword_index on CSX(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-fuzzyeq-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_03.aql
index f553abe..3f3a247 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_03.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-fuzzyeq-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_01.aql
index 63efb89..14f63bf 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-jaccard-check_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_02.aql
index 1298833..46932be 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index keyword_index on CSX(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-jaccard-check_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_03.aql
index c2d6b78..77ac9ba 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_03.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-jaccard-check_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_04.aql
index 17b1262..6129c52 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_04.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-jaccard-check_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_01.aql
index 7c69928..47d1192 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_01.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-jaccard_01.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_02.aql
index 1f5c082..ac33cb0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_02.aql
@@ -28,14 +28,6 @@
 
 create dataset CSX(CSXType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
 create index keyword_index on CSX(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-jaccard_02.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_03.aql
index 94e59c0..128e500 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_03.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-jaccard_03.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_04.aql
index 20fefbb..325f955 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_04.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 create index keyword_index on DBLP(title) type keyword;
 
 write output to nc1:"rttest/inverted-index-join_word-jaccard_04.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_01.aql
index a456568..96d3b1a 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_01.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_01.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_02.aql
index be946af..e0ef1aa 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_02.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_02.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_03.aql
index e709e8c..75a584e 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_03.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_03.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_04.aql
index 8bbd3d6..2f42ab0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_04.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_04.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_05.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_05.aql
index b929ef2..73f8ddb 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_05.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_05.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_05.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_06.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_06.aql
index 3b86bd0..221bfb8 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_06.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_06.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_06.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_07.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_07.aql
index 9960262..949ed2c 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_07.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_07.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_07.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_08.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_08.aql
index ddb5018..3f899a2 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_08.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_08.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_08.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_01.aql
index 4a21a3b..0370fff 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_01.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_01.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_02.aql
index 6657bf4..77d78f8 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_02.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_02.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_03.aql
index f1796a1..c34c28a 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_03.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_03.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_04.aql
index fb63621..082dc39 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_04.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_04.adm";
 
 for $o in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_05.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_05.aql
index b421d54..6d892df 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_05.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_05.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_05.adm";
 
 // We cannot introduce edit-distance-check because the condition is >=
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_06.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_06.aql
index a9372ec..20d4879 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_06.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_06.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_06.adm";
 
 // We cannot introduce edit-distance-check because the condition is <=
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_07.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_07.aql
index 74959c7..49871f9 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_07.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_07.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_07.adm";
 
 // We cannot introduce edit-distance-check because the condition is >
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_08.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_08.aql
index 4ac54ed..ed6d406 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_08.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_08.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_08.adm";
 
 // We cannot introduce edit-distance-check because the condition is <
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-edit-distance-check.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-edit-distance-check.aql
index f53435b..702b739 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-edit-distance-check.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-edit-distance-check.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_fuzzyeq-to-edit-distance-check.adm";
 
 set simfunction 'edit-distance';
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-jaccard-check.aql
index f4da76f..eaacc3e 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-jaccard-check.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-jaccard-check.aql
@@ -18,10 +18,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_fuzzyeq-to-jaccard-check.adm";
 
 set simfunction 'jaccard';
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_01.aql
index c76f15b..8647565 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_01.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_02.aql
index 52296d5..b48eb24 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_02.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_03.aql
index 8251c76..74dcf9d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_03.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_04.aql
index 2c53231..e17d458 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_04.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_05.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_05.aql
index 03a0321..266f369 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_05.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_05.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_06.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_06.aql
index b1d26da..3beec4b 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_06.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_06.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_07.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_07.aql
index e008feb..86401ac 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_07.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_07.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_08.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_08.aql
index 7e93d7f..372a3e8 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_08.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_08.aql
@@ -20,10 +20,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_01.aql
index ecc0554..8e8a0f8 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_01.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_01.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_02.aql
index 18bf1a3..bee4595 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_02.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_02.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_03.aql
index f2f6e77..591c8f0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_03.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_03.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_02.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_04.aql
index 8a945bc..2d10e1d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_04.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_04.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_03.adm";
 
 for $paper in dataset('DBLP')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_05.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_05.aql
index e9808ff..f091dcd 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_05.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_05.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_05.adm";
 
 // We cannot introduce jaccard-check because the condition is <=
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_06.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_06.aql
index 91953fc..7b98eaf 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_06.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_06.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_06.adm";
 
 // We cannot introduce jaccard-check because the condition is >=
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_07.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_07.aql
index 2f3b080..71f087e 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_07.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_07.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_07.adm";
 
 // We cannot introduce jaccard-check because the condition is <
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_08.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_08.aql
index fc61d1f..13d11ed 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_08.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_08.aql
@@ -19,10 +19,6 @@
 
 create dataset DBLP(DBLPType) partitioned by key id;
 
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
 write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_08.adm";
 
 // We cannot introduce jaccard-check because the condition is >