Changed the rewrite rule of secondary btree indexes to validate the returned tuples when probing the primary index. The validation is required to enforce our transaction semantics. For the R-tree and the inverted index, the validation already exist.

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_lsm_stabilization@777 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-56.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-56.plan
index cb0d369..99f3371 100644
--- a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-56.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-56.plan
@@ -1,14 +1,16 @@
 -- SINK_WRITE  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
-      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-        -- BTREE_SEARCH  |PARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-            -- STABLE_SORT [$$13(ASC)]  |LOCAL|
-              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |LOCAL|
+                -- STABLE_SORT [$$13(ASC)]  |LOCAL|
                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- BTREE_SEARCH  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- ASSIGN  |PARTITIONED|
-                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|