Reintegrated asterix-fuzzy.

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_stabilization@437 eaa15691-b419-025a-1212-ee371bd00084
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
new file mode 100644
index 0000000..f5c9a18
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let.aql
@@ -0,0 +1,33 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on strings.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  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 index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance-check($o.authors, "Amihay Motro", 1)
+where $ed[0]
+return $o
\ No newline at end of file