Enabled IntroduceProjectRule. Approved by Vinayak.

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_stabilization@1008 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_02.plan b/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_02.plan
index 1f56c4f..bd2eb3d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_02.plan
@@ -1,11 +1,10 @@
 -- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
-    -- AGGREGATE  |UNPARTITIONED|
-      -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-        -- HYBRID_HASH_JOIN [$$0][$$1]  |UNPARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-            -- UNNEST  |UNPARTITIONED|
-              -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-            -- UNNEST  |UNPARTITIONED|
-              -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
+  -- AGGREGATE  |UNPARTITIONED|
+    -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+      -- HYBRID_HASH_JOIN [$$0][$$1]  |UNPARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+          -- UNNEST  |UNPARTITIONED|
+            -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+          -- UNNEST  |UNPARTITIONED|
+            -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|