Added another test case to cover the composite keys.
diff --git a/asterix-app/src/test/resources/optimizerts/results/skip-index/skip-secondary-btree-index-2.plan b/asterix-app/src/test/resources/optimizerts/results/skip-index/skip-secondary-btree-index-2.plan
new file mode 100644
index 0000000..807e509
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/skip-index/skip-secondary-btree-index-2.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT |PARTITIONED|
+ -- ONE_TO_ONE_EXCHANGE |PARTITIONED|
+ -- STREAM_PROJECT |PARTITIONED|
+ -- STREAM_SELECT |PARTITIONED|
+ -- ASSIGN |PARTITIONED|
+ -- STREAM_PROJECT |PARTITIONED|
+ -- ONE_TO_ONE_EXCHANGE |PARTITIONED|
+ -- BTREE_SEARCH |PARTITIONED|
+ -- ONE_TO_ONE_EXCHANGE |PARTITIONED|
+ -- STABLE_SORT [$$11(ASC)] |PARTITIONED|
+ -- ONE_TO_ONE_EXCHANGE |PARTITIONED|
+ -- STREAM_PROJECT |PARTITIONED|
+ -- ONE_TO_ONE_EXCHANGE |PARTITIONED|
+ -- BTREE_SEARCH |PARTITIONED|
+ -- ONE_TO_ONE_EXCHANGE |PARTITIONED|
+ -- ASSIGN |PARTITIONED|
+ -- EMPTY_TUPLE_SOURCE |PARTITIONED|