merging

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_function_merge@466 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/concat1.aql b/asterix-app/src/test/resources/runtimets/queries/string/concat1.aql
new file mode 100644
index 0000000..a6ce63b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/concat1.aql
@@ -0,0 +1,12 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/string_concat1.adm";
+
+let $x :=  ["aa", "25991", "bb", "31526"]
+let $c := string-concat($x)
+
+let $x1 :=  []
+let $c1 := string-concat($x1)
+return {"result1": $c,"result2": $c1}