diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable.aql
new file mode 100644
index 0000000..a35c8e5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable.aql
@@ -0,0 +1,42 @@
+/* 
+ * Test case Name  : scan-delete-btree-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary btree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+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 age_index on Customers(age);
+
+delete $c from dataset Customers where $c.cid>=200;
+
+write output to nc1:"rttest/dml_scan-delete-btree-secondary-index-nullable.adm";
+
+for $c in dataset('Customers')
+where $c.age < 20
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable.aql
new file mode 100644
index 0000000..fc30529
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable.aql
@@ -0,0 +1,39 @@
+/* 
+ * Test case Name  : scan-delete-rtree-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary rtree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point?,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create dataset MyData(MyRecord)
+  partitioned by key id;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialDataNulls.json"),("format"="adm")) pre-sorted;
+
+create index rtree_index_point on MyData(point) type rtree;
+
+delete $m from dataset MyData where $m.id>10;
+
+write output to nc1:"rttest/dml_scan-delete-rtree-secondary-index-nullable.adm";
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-polygon(create-point(0.0,1.0), create-point(0.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable.aql
new file mode 100644
index 0000000..d5d22d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable.aql
@@ -0,0 +1,55 @@
+/* 
+ * Test case Name  : scan-delete-btree-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion into secondary btree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) partitioned by key cid;
+create dataset CustomersMini(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 age_index on CustomersMini(age);
+
+insert into dataset CustomersMini
+(
+	for $c in dataset('Customers')
+	where $c.cid < 200	
+	return {
+	  "cid": $c.cid,
+  	  "name": $c.name,
+  	  "age": $c.age,
+  	  "address": $c.address,
+  	  "interests": $c.interests,
+  	  "children": $c.children
+	}	
+);
+
+write output to nc1:"rttest/dml_scan-insert-btree-secondary-index-nullable.adm";
+
+for $c in dataset('CustomersMini')
+where $c.age < 20
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable.aql
new file mode 100644
index 0000000..161439a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable.aql
@@ -0,0 +1,54 @@
+/* 
+ * Test case Name  : scan-insert-rtree-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion into secondary rtree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point?,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create type MyMiniRecord as closed {
+  id: int32,
+  point: point?
+}
+
+create dataset MyData(MyRecord)
+  partitioned by key id;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialDataNulls.json"),("format"="adm")) pre-sorted;
+
+create dataset MyMiniData(MyMiniRecord)
+  partitioned by key id;
+
+create index rtree_index_point on MyMiniData(point) type rtree;
+
+insert into dataset MyMiniData
+(
+	for $m in dataset('MyData')
+	return {
+		"id": $m.id,
+		"point": $m.point
+	}
+);
+
+write output to nc1:"rttest/dml_scan-insert-rtree-secondary-index-nullable.adm";
+
+for $o in dataset('MyMiniData')
+where spatial-intersect($o.point, create-polygon(create-point(0.0,1.0), create-point(0.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-btree-secondary-index-nullable.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-btree-secondary-index-nullable.adm
new file mode 100644
index 0000000..a12b9b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-btree-secondary-index-nullable.adm
@@ -0,0 +1,14 @@
+{ "cid": 3, "name": "Phung Wheetley", "age": 12, "address": { "number": 5549, "street": "Hill St.", "city": "Mountain View" }, "interests": {{ "Wine" }}, "children": [ { "name": "Raelene Wheetley", "age": null }, { "name": "Dudley Wheetley", "age": null } ] }
+{ "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": {{ "Wine", "Walking" }}, "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }
+{ "cid": 52, "name": "Janna Tish", "age": 12, "address": { "number": 2598, "street": "Washington St.", "city": "San Jose" }, "interests": {{  }}, "children": [ { "name": "Mackenzie Tish", "age": null }, { "name": "Ettie Tish", "age": null }, { "name": "Hortencia Tish", "age": null }, { "name": "Paul Tish", "age": null } ] }
+{ "cid": 55, "name": "Terrence Bryant", "age": 12, "address": { "number": 3188, "street": "Park St.", "city": "Seattle" }, "interests": {{ "Wine", "Cooking" }}, "children": [ { "name": "Dayna Bryant", "age": null } ] }
+{ "cid": 61, "name": "Linsey Mose", "age": 17, "address": { "number": 9198, "street": "Lake St.", "city": "Portland" }, "interests": {{ "Puzzles" }}, "children": [ { "name": "Tilda Mose", "age": null }, { "name": "Lillie Mose", "age": null }, { "name": "Robyn Mose", "age": null } ] }
+{ "cid": 92, "name": "Kenny Laychock", "age": 15, "address": { "number": 4790, "street": "Washington St.", "city": "Portland" }, "interests": {{ "Video Games", "Basketball" }}, "children": [  ] }
+{ "cid": 111, "name": "Eddy Ortea", "age": 16, "address": { "number": 6874, "street": "Main St.", "city": "Los Angeles" }, "interests": {{  }}, "children": [ { "name": "Shera Ortea", "age": null } ] }
+{ "cid": 112, "name": "Dorie Lave", "age": 10, "address": { "number": 2286, "street": "Lake St.", "city": "Los Angeles" }, "interests": {{ "Coffee" }}, "children": [ { "name": "Grady Lave", "age": null }, { "name": "Daysi Lave", "age": null } ] }
+{ "cid": 144, "name": "Celesta Sosebee", "age": 19, "address": { "number": 2683, "street": "7th St.", "city": "Portland" }, "interests": {{ "Databases", "Databases" }}, "children": [ { "name": "Jesse Sosebee", "age": null }, { "name": "Oralee Sosebee", "age": null }, { "name": "Sunday Sosebee", "age": null } ] }
+{ "cid": 146, "name": "Glennis Vanruiten", "age": 14, "address": { "number": 8272, "street": "Park St.", "city": "Los Angeles" }, "interests": {{ "Squash", "Databases" }}, "children": [ { "name": "Joanie Vanruiten", "age": null }, { "name": "Long Vanruiten", "age": null }, { "name": "Abdul Vanruiten", "age": null } ] }
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": {{ "Computers", "Wine", "Databases", "Walking" }}, "children": [  ] }
+{ "cid": 186, "name": "Krystle Spangler", "age": 15, "address": { "number": 4697, "street": "Cedar St.", "city": "Seattle" }, "interests": {{ "Cigars", "Squash", "Coffee", "Video Games" }}, "children": [  ] }
+{ "cid": 192, "name": "Shakira Delmonte", "age": 10, "address": { "number": 8838, "street": "Park St.", "city": "Sunnyvale" }, "interests": {{ "Books", "Cigars", "Bass", "Base Jumping" }}, "children": [ { "name": "Sergio Delmonte", "age": null }, { "name": "Aida Delmonte", "age": null }, { "name": "Juliane Delmonte", "age": null } ] }
+{ "cid": 195, "name": "Annetta Demille", "age": 17, "address": { "number": 5722, "street": "Park St.", "city": "Portland" }, "interests": {{ "Bass" }}, "children": [ { "name": "Natacha Demille", "age": null }, { "name": "Giuseppe Demille", "age": null }, { "name": "Kami Demille", "age": null }, { "name": "Jewell Demille", "age": null } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index-nullable.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index-nullable.adm
new file mode 100644
index 0000000..0e739c3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index-nullable.adm
@@ -0,0 +1 @@
+{ "id": 10 }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-btree-secondary-index-nullable.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-btree-secondary-index-nullable.adm
new file mode 100644
index 0000000..a12b9b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-btree-secondary-index-nullable.adm
@@ -0,0 +1,14 @@
+{ "cid": 3, "name": "Phung Wheetley", "age": 12, "address": { "number": 5549, "street": "Hill St.", "city": "Mountain View" }, "interests": {{ "Wine" }}, "children": [ { "name": "Raelene Wheetley", "age": null }, { "name": "Dudley Wheetley", "age": null } ] }
+{ "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": {{ "Wine", "Walking" }}, "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }
+{ "cid": 52, "name": "Janna Tish", "age": 12, "address": { "number": 2598, "street": "Washington St.", "city": "San Jose" }, "interests": {{  }}, "children": [ { "name": "Mackenzie Tish", "age": null }, { "name": "Ettie Tish", "age": null }, { "name": "Hortencia Tish", "age": null }, { "name": "Paul Tish", "age": null } ] }
+{ "cid": 55, "name": "Terrence Bryant", "age": 12, "address": { "number": 3188, "street": "Park St.", "city": "Seattle" }, "interests": {{ "Wine", "Cooking" }}, "children": [ { "name": "Dayna Bryant", "age": null } ] }
+{ "cid": 61, "name": "Linsey Mose", "age": 17, "address": { "number": 9198, "street": "Lake St.", "city": "Portland" }, "interests": {{ "Puzzles" }}, "children": [ { "name": "Tilda Mose", "age": null }, { "name": "Lillie Mose", "age": null }, { "name": "Robyn Mose", "age": null } ] }
+{ "cid": 92, "name": "Kenny Laychock", "age": 15, "address": { "number": 4790, "street": "Washington St.", "city": "Portland" }, "interests": {{ "Video Games", "Basketball" }}, "children": [  ] }
+{ "cid": 111, "name": "Eddy Ortea", "age": 16, "address": { "number": 6874, "street": "Main St.", "city": "Los Angeles" }, "interests": {{  }}, "children": [ { "name": "Shera Ortea", "age": null } ] }
+{ "cid": 112, "name": "Dorie Lave", "age": 10, "address": { "number": 2286, "street": "Lake St.", "city": "Los Angeles" }, "interests": {{ "Coffee" }}, "children": [ { "name": "Grady Lave", "age": null }, { "name": "Daysi Lave", "age": null } ] }
+{ "cid": 144, "name": "Celesta Sosebee", "age": 19, "address": { "number": 2683, "street": "7th St.", "city": "Portland" }, "interests": {{ "Databases", "Databases" }}, "children": [ { "name": "Jesse Sosebee", "age": null }, { "name": "Oralee Sosebee", "age": null }, { "name": "Sunday Sosebee", "age": null } ] }
+{ "cid": 146, "name": "Glennis Vanruiten", "age": 14, "address": { "number": 8272, "street": "Park St.", "city": "Los Angeles" }, "interests": {{ "Squash", "Databases" }}, "children": [ { "name": "Joanie Vanruiten", "age": null }, { "name": "Long Vanruiten", "age": null }, { "name": "Abdul Vanruiten", "age": null } ] }
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": {{ "Computers", "Wine", "Databases", "Walking" }}, "children": [  ] }
+{ "cid": 186, "name": "Krystle Spangler", "age": 15, "address": { "number": 4697, "street": "Cedar St.", "city": "Seattle" }, "interests": {{ "Cigars", "Squash", "Coffee", "Video Games" }}, "children": [  ] }
+{ "cid": 192, "name": "Shakira Delmonte", "age": 10, "address": { "number": 8838, "street": "Park St.", "city": "Sunnyvale" }, "interests": {{ "Books", "Cigars", "Bass", "Base Jumping" }}, "children": [ { "name": "Sergio Delmonte", "age": null }, { "name": "Aida Delmonte", "age": null }, { "name": "Juliane Delmonte", "age": null } ] }
+{ "cid": 195, "name": "Annetta Demille", "age": 17, "address": { "number": 5722, "street": "Park St.", "city": "Portland" }, "interests": {{ "Bass" }}, "children": [ { "name": "Natacha Demille", "age": null }, { "name": "Giuseppe Demille", "age": null }, { "name": "Kami Demille", "age": null }, { "name": "Jewell Demille", "age": null } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index-nullable.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index-nullable.adm
new file mode 100644
index 0000000..4bd8c19
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index-nullable.adm
@@ -0,0 +1,2 @@
+{ "id": 10 }
+{ "id": 12 }