http://git-wip-us.apache.org/repos/asf/asterixdb/blob/d906bd89/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_01.plan
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_01.plan
 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_01.plan
index 5b169eb..a871960 100644
--- 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_01.plan
+++ 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_01.plan
@@ -3,27 +3,142 @@
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
         -- STREAM_PROJECT  |PARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- HYBRID_HASH_JOIN [$$25][$$15]  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- DATASOURCE_SCAN  |PARTITIONED|
+                -- HYBRID_HASH_JOIN [$$15][$$idLeft_0]  |PARTITIONED|
                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- STREAM_SELECT  |PARTITIONED|
-                    -- ASSIGN  |PARTITIONED|
-                      -- STREAM_PROJECT  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- BTREE_SEARCH  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- LENGTH_PARTITIONED_INVERTED_INDEX_SEARCH  
|PARTITIONED|
-                                    -- BROADCAST_EXCHANGE  |PARTITIONED|
-                                      -- STREAM_PROJECT  |PARTITIONED|
-                                        -- ASSIGN  |PARTITIONED|
-                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$idLeft_0]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$16][$$idRight_0]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- DATASOURCE_SCAN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$idRight_0]  
|PARTITIONED|
+                            -- EXTERNAL_GROUP_BY[$$95, $$93]  |PARTITIONED|
+                                    {
+                                      -- AGGREGATE  |LOCAL|
+                                        -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                    }
+                              -- HASH_PARTITION_EXCHANGE [$$95, $$93]  
|PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- STREAM_SELECT  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- HYBRID_HASH_JOIN 
[$$prefixTokenRight][$$prefixTokenLeft]  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenRight]  |PARTITIONED|
+                                            -- UNNEST  |PARTITIONED|
                                               -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
-                                                -- EMPTY_TUPLE_SOURCE  
|PARTITIONED|
+                                                -- 
PRE_CLUSTERED_GROUP_BY[$$30]  |PARTITIONED|
+                                                        {
+                                                          -- AGGREGATE  |LOCAL|
+                                                            -- STREAM_SELECT  
|LOCAL|
+                                                              -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                        }
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- STABLE_SORT [$$30(ASC), 
$$i(ASC)]  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- STREAM_PROJECT  
|PARTITIONED|
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- UNNEST  
|PARTITIONED|
+                                                                  -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                    -- ASSIGN  
|PARTITIONED|
+                                                                      -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                        -- 
DATASOURCE_SCAN  |PARTITIONED|
+                                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                            -- 
EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                  -- ASSIGN  
|PARTITIONED|
+                                                                    -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                      -- 
REPLICATE  |PARTITIONED|
+                                                                        -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                          -- 
ASSIGN  |PARTITIONED|
+                                                                            -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                              
-- STREAM_PROJECT  |PARTITIONED|
+                                                                               
 -- SORT_MERGE_EXCHANGE [$$100(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
   -- STABLE_SORT [$$100(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
       -- EXTERNAL_GROUP_BY[$$107]  |PARTITIONED|
+                                                                               
               {
+                                                                               
                 -- AGGREGATE  |LOCAL|
+                                                                               
                   -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
               }
+                                                                               
         -- HASH_PARTITION_EXCHANGE [$$107]  |PARTITIONED|
+                                                                               
           -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                   {
+                                                                               
                     -- AGGREGATE  |LOCAL|
+                                                                               
                       -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                   }
+                                                                               
             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
               -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                 -- UNNEST  |PARTITIONED|
+                                                                               
                   -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                     -- ASSIGN  |PARTITIONED|
+                                                                               
                       -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                           -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                               -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenLeft]  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- UNNEST  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- 
PRE_CLUSTERED_GROUP_BY[$$26]  |PARTITIONED|
+                                                            {
+                                                              -- AGGREGATE  
|LOCAL|
+                                                                -- 
STREAM_SELECT  |LOCAL|
+                                                                  -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                            }
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- STABLE_SORT 
[$$26(ASC), $$i(ASC)]  |PARTITIONED|
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- STREAM_PROJECT  
|PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- UNNEST  
|PARTITIONED|
+                                                                      -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                            -- 
DATASOURCE_SCAN  |PARTITIONED|
+                                                                              
-- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- 
REPLICATE  |PARTITIONED|
+                                                                      -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                            -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                              
-- SORT_MERGE_EXCHANGE [$$100(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
 -- STABLE_SORT [$$100(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EXTERNAL_GROUP_BY[$$107]  |PARTITIONED|
+                                                                               
             {
+                                                                               
               -- AGGREGATE  |LOCAL|
+                                                                               
                 -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
             }
+                                                                               
       -- HASH_PARTITION_EXCHANGE [$$107]  |PARTITIONED|
+                                                                               
         -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                 {
+                                                                               
                   -- AGGREGATE  |LOCAL|
+                                                                               
                     -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                 }
+                                                                               
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
             -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
               -- UNNEST  |PARTITIONED|
+                                                                               
                 -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                   -- ASSIGN  |PARTITIONED|
+                                                                               
                     -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                         -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/d906bd89/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_02.plan
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_02.plan
 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_02.plan
index 5b169eb..a871960 100644
--- 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_02.plan
+++ 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_02.plan
@@ -3,27 +3,142 @@
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
         -- STREAM_PROJECT  |PARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- HYBRID_HASH_JOIN [$$25][$$15]  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- DATASOURCE_SCAN  |PARTITIONED|
+                -- HYBRID_HASH_JOIN [$$15][$$idLeft_0]  |PARTITIONED|
                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- STREAM_SELECT  |PARTITIONED|
-                    -- ASSIGN  |PARTITIONED|
-                      -- STREAM_PROJECT  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- BTREE_SEARCH  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- LENGTH_PARTITIONED_INVERTED_INDEX_SEARCH  
|PARTITIONED|
-                                    -- BROADCAST_EXCHANGE  |PARTITIONED|
-                                      -- STREAM_PROJECT  |PARTITIONED|
-                                        -- ASSIGN  |PARTITIONED|
-                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$idLeft_0]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$16][$$idRight_0]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- DATASOURCE_SCAN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$idRight_0]  
|PARTITIONED|
+                            -- EXTERNAL_GROUP_BY[$$95, $$93]  |PARTITIONED|
+                                    {
+                                      -- AGGREGATE  |LOCAL|
+                                        -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                    }
+                              -- HASH_PARTITION_EXCHANGE [$$95, $$93]  
|PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- STREAM_SELECT  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- HYBRID_HASH_JOIN 
[$$prefixTokenRight][$$prefixTokenLeft]  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenRight]  |PARTITIONED|
+                                            -- UNNEST  |PARTITIONED|
                                               -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
-                                                -- EMPTY_TUPLE_SOURCE  
|PARTITIONED|
+                                                -- 
PRE_CLUSTERED_GROUP_BY[$$30]  |PARTITIONED|
+                                                        {
+                                                          -- AGGREGATE  |LOCAL|
+                                                            -- STREAM_SELECT  
|LOCAL|
+                                                              -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                        }
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- STABLE_SORT [$$30(ASC), 
$$i(ASC)]  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- STREAM_PROJECT  
|PARTITIONED|
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- UNNEST  
|PARTITIONED|
+                                                                  -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                    -- ASSIGN  
|PARTITIONED|
+                                                                      -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                        -- 
DATASOURCE_SCAN  |PARTITIONED|
+                                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                            -- 
EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                  -- ASSIGN  
|PARTITIONED|
+                                                                    -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                      -- 
REPLICATE  |PARTITIONED|
+                                                                        -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                          -- 
ASSIGN  |PARTITIONED|
+                                                                            -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                              
-- STREAM_PROJECT  |PARTITIONED|
+                                                                               
 -- SORT_MERGE_EXCHANGE [$$100(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
   -- STABLE_SORT [$$100(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
       -- EXTERNAL_GROUP_BY[$$107]  |PARTITIONED|
+                                                                               
               {
+                                                                               
                 -- AGGREGATE  |LOCAL|
+                                                                               
                   -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
               }
+                                                                               
         -- HASH_PARTITION_EXCHANGE [$$107]  |PARTITIONED|
+                                                                               
           -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                   {
+                                                                               
                     -- AGGREGATE  |LOCAL|
+                                                                               
                       -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                   }
+                                                                               
             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
               -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                 -- UNNEST  |PARTITIONED|
+                                                                               
                   -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                     -- ASSIGN  |PARTITIONED|
+                                                                               
                       -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                           -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                               -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenLeft]  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- UNNEST  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- 
PRE_CLUSTERED_GROUP_BY[$$26]  |PARTITIONED|
+                                                            {
+                                                              -- AGGREGATE  
|LOCAL|
+                                                                -- 
STREAM_SELECT  |LOCAL|
+                                                                  -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                            }
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- STABLE_SORT 
[$$26(ASC), $$i(ASC)]  |PARTITIONED|
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- STREAM_PROJECT  
|PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- UNNEST  
|PARTITIONED|
+                                                                      -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                            -- 
DATASOURCE_SCAN  |PARTITIONED|
+                                                                              
-- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- 
REPLICATE  |PARTITIONED|
+                                                                      -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                            -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                              
-- SORT_MERGE_EXCHANGE [$$100(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
 -- STABLE_SORT [$$100(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EXTERNAL_GROUP_BY[$$107]  |PARTITIONED|
+                                                                               
             {
+                                                                               
               -- AGGREGATE  |LOCAL|
+                                                                               
                 -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
             }
+                                                                               
       -- HASH_PARTITION_EXCHANGE [$$107]  |PARTITIONED|
+                                                                               
         -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                 {
+                                                                               
                   -- AGGREGATE  |LOCAL|
+                                                                               
                     -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                 }
+                                                                               
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
             -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
               -- UNNEST  |PARTITIONED|
+                                                                               
                 -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                   -- ASSIGN  |PARTITIONED|
+                                                                               
                     -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                         -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/d906bd89/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_03.plan
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_03.plan
 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_03.plan
index 5b169eb..40b2f5b 100644
--- 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_03.plan
+++ 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_03.plan
@@ -3,27 +3,141 @@
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
         -- STREAM_PROJECT  |PARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- HYBRID_HASH_JOIN [$$25][$$15]  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- DATASOURCE_SCAN  |PARTITIONED|
+                -- HYBRID_HASH_JOIN [$$15][$$idLeft_0]  |PARTITIONED|
                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- STREAM_SELECT  |PARTITIONED|
-                    -- ASSIGN  |PARTITIONED|
-                      -- STREAM_PROJECT  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- BTREE_SEARCH  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- LENGTH_PARTITIONED_INVERTED_INDEX_SEARCH  
|PARTITIONED|
-                                    -- BROADCAST_EXCHANGE  |PARTITIONED|
-                                      -- STREAM_PROJECT  |PARTITIONED|
-                                        -- ASSIGN  |PARTITIONED|
-                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- DATASOURCE_SCAN  |PARTITIONED|
-                                              -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
-                                                -- EMPTY_TUPLE_SOURCE  
|PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$idLeft_0]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$16][$$idRight_0]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- DATASOURCE_SCAN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$idRight_0]  
|PARTITIONED|
+                            -- EXTERNAL_GROUP_BY[$$95, $$93]  |PARTITIONED|
+                                    {
+                                      -- AGGREGATE  |LOCAL|
+                                        -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                    }
+                              -- HASH_PARTITION_EXCHANGE [$$95, $$93]  
|PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- STREAM_SELECT  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- HYBRID_HASH_JOIN 
[$$prefixTokenRight][$$prefixTokenLeft]  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenRight]  |PARTITIONED|
+                                            -- UNNEST  |PARTITIONED|
+                                              -- STREAM_PROJECT  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- REPLICATE  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- 
PRE_CLUSTERED_GROUP_BY[$$26]  |PARTITIONED|
+                                                                {
+                                                                  -- AGGREGATE 
 |LOCAL|
+                                                                    -- 
STREAM_SELECT  |LOCAL|
+                                                                      -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                }
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- STABLE_SORT 
[$$26(ASC), $$i(ASC)]  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                                      -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                        -- 
UNNEST  |PARTITIONED|
+                                                                          -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                            -- 
ASSIGN  |PARTITIONED|
+                                                                              
-- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
 -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                                      -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                            -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                              
-- SORT_MERGE_EXCHANGE [$$100(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
 -- STABLE_SORT [$$100(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EXTERNAL_GROUP_BY[$$107]  |PARTITIONED|
+                                                                               
             {
+                                                                               
               -- AGGREGATE  |LOCAL|
+                                                                               
                 -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
             }
+                                                                               
       -- HASH_PARTITION_EXCHANGE [$$107]  |PARTITIONED|
+                                                                               
         -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                 {
+                                                                               
                   -- AGGREGATE  |LOCAL|
+                                                                               
                     -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                 }
+                                                                               
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
             -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
               -- UNNEST  |PARTITIONED|
+                                                                               
                 -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                   -- ASSIGN  |PARTITIONED|
+                                                                               
                     -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                         -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenLeft]  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- UNNEST  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- REPLICATE  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- 
PRE_CLUSTERED_GROUP_BY[$$26]  |PARTITIONED|
+                                                                {
+                                                                  -- AGGREGATE 
 |LOCAL|
+                                                                    -- 
STREAM_SELECT  |LOCAL|
+                                                                      -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                }
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- STABLE_SORT 
[$$26(ASC), $$i(ASC)]  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                                      -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                        -- 
UNNEST  |PARTITIONED|
+                                                                          -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                            -- 
ASSIGN  |PARTITIONED|
+                                                                              
-- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
 -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                                      -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                            -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                              
-- SORT_MERGE_EXCHANGE [$$100(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
 -- STABLE_SORT [$$100(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EXTERNAL_GROUP_BY[$$107]  |PARTITIONED|
+                                                                               
             {
+                                                                               
               -- AGGREGATE  |LOCAL|
+                                                                               
                 -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
             }
+                                                                               
       -- HASH_PARTITION_EXCHANGE [$$107]  |PARTITIONED|
+                                                                               
         -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                 {
+                                                                               
                   -- AGGREGATE  |LOCAL|
+                                                                               
                     -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                 }
+                                                                               
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
             -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
               -- UNNEST  |PARTITIONED|
+                                                                               
                 -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                   -- ASSIGN  |PARTITIONED|
+                                                                               
                     -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                         -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/d906bd89/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_04.plan
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_04.plan
 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_04.plan
index 5b169eb..a871960 100644
--- 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_04.plan
+++ 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_04.plan
@@ -3,27 +3,142 @@
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
         -- STREAM_PROJECT  |PARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- HYBRID_HASH_JOIN [$$25][$$15]  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- DATASOURCE_SCAN  |PARTITIONED|
+                -- HYBRID_HASH_JOIN [$$15][$$idLeft_0]  |PARTITIONED|
                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- STREAM_SELECT  |PARTITIONED|
-                    -- ASSIGN  |PARTITIONED|
-                      -- STREAM_PROJECT  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- BTREE_SEARCH  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- LENGTH_PARTITIONED_INVERTED_INDEX_SEARCH  
|PARTITIONED|
-                                    -- BROADCAST_EXCHANGE  |PARTITIONED|
-                                      -- STREAM_PROJECT  |PARTITIONED|
-                                        -- ASSIGN  |PARTITIONED|
-                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$idLeft_0]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$16][$$idRight_0]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- DATASOURCE_SCAN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$idRight_0]  
|PARTITIONED|
+                            -- EXTERNAL_GROUP_BY[$$95, $$93]  |PARTITIONED|
+                                    {
+                                      -- AGGREGATE  |LOCAL|
+                                        -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                    }
+                              -- HASH_PARTITION_EXCHANGE [$$95, $$93]  
|PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- STREAM_SELECT  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- HYBRID_HASH_JOIN 
[$$prefixTokenRight][$$prefixTokenLeft]  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenRight]  |PARTITIONED|
+                                            -- UNNEST  |PARTITIONED|
                                               -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
-                                                -- EMPTY_TUPLE_SOURCE  
|PARTITIONED|
+                                                -- 
PRE_CLUSTERED_GROUP_BY[$$30]  |PARTITIONED|
+                                                        {
+                                                          -- AGGREGATE  |LOCAL|
+                                                            -- STREAM_SELECT  
|LOCAL|
+                                                              -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                        }
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- STABLE_SORT [$$30(ASC), 
$$i(ASC)]  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- STREAM_PROJECT  
|PARTITIONED|
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- UNNEST  
|PARTITIONED|
+                                                                  -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                    -- ASSIGN  
|PARTITIONED|
+                                                                      -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                        -- 
DATASOURCE_SCAN  |PARTITIONED|
+                                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                            -- 
EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                  -- ASSIGN  
|PARTITIONED|
+                                                                    -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                      -- 
REPLICATE  |PARTITIONED|
+                                                                        -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                          -- 
ASSIGN  |PARTITIONED|
+                                                                            -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                              
-- STREAM_PROJECT  |PARTITIONED|
+                                                                               
 -- SORT_MERGE_EXCHANGE [$$100(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
   -- STABLE_SORT [$$100(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
       -- EXTERNAL_GROUP_BY[$$107]  |PARTITIONED|
+                                                                               
               {
+                                                                               
                 -- AGGREGATE  |LOCAL|
+                                                                               
                   -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
               }
+                                                                               
         -- HASH_PARTITION_EXCHANGE [$$107]  |PARTITIONED|
+                                                                               
           -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                   {
+                                                                               
                     -- AGGREGATE  |LOCAL|
+                                                                               
                       -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                   }
+                                                                               
             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
               -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                 -- UNNEST  |PARTITIONED|
+                                                                               
                   -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                     -- ASSIGN  |PARTITIONED|
+                                                                               
                       -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                           -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                               -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenLeft]  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- UNNEST  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- 
PRE_CLUSTERED_GROUP_BY[$$26]  |PARTITIONED|
+                                                            {
+                                                              -- AGGREGATE  
|LOCAL|
+                                                                -- 
STREAM_SELECT  |LOCAL|
+                                                                  -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                            }
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- STABLE_SORT 
[$$26(ASC), $$i(ASC)]  |PARTITIONED|
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- STREAM_PROJECT  
|PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- UNNEST  
|PARTITIONED|
+                                                                      -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                            -- 
DATASOURCE_SCAN  |PARTITIONED|
+                                                                              
-- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- 
REPLICATE  |PARTITIONED|
+                                                                      -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                            -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                              
-- SORT_MERGE_EXCHANGE [$$100(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
 -- STABLE_SORT [$$100(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EXTERNAL_GROUP_BY[$$107]  |PARTITIONED|
+                                                                               
             {
+                                                                               
               -- AGGREGATE  |LOCAL|
+                                                                               
                 -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
             }
+                                                                               
       -- HASH_PARTITION_EXCHANGE [$$107]  |PARTITIONED|
+                                                                               
         -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                 {
+                                                                               
                   -- AGGREGATE  |LOCAL|
+                                                                               
                     -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                 }
+                                                                               
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
             -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
               -- UNNEST  |PARTITIONED|
+                                                                               
                 -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                   -- ASSIGN  |PARTITIONED|
+                                                                               
                     -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                         -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/d906bd89/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_inline_03.plan
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_inline_03.plan
 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_inline_03.plan
index 3b0a3c9..c07cb22 100644
--- 
a/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_inline_03.plan
+++ 
b/asterixdb/asterix-app/src/test/resources/optimizerts/results/open-index-enforced/inverted-index-join/ngram-jaccard-check_inline_03.plan
@@ -3,27 +3,143 @@
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
         -- STREAM_PROJECT  |PARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- HYBRID_HASH_JOIN [$$29][$$17]  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- DATASOURCE_SCAN  |PARTITIONED|
+                -- HYBRID_HASH_JOIN [$$17][$$idLeft_0]  |PARTITIONED|
                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-              -- HASH_PARTITION_EXCHANGE [$$17]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- STREAM_SELECT  |PARTITIONED|
-                    -- ASSIGN  |PARTITIONED|
-                      -- STREAM_PROJECT  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- BTREE_SEARCH  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- STABLE_SORT [$$32(ASC)]  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- LENGTH_PARTITIONED_INVERTED_INDEX_SEARCH  
|PARTITIONED|
-                                    -- BROADCAST_EXCHANGE  |PARTITIONED|
-                                      -- STREAM_PROJECT  |PARTITIONED|
-                                        -- ASSIGN  |PARTITIONED|
-                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- DATASOURCE_SCAN  |PARTITIONED|
-                                              -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
-                                                -- EMPTY_TUPLE_SOURCE  
|PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$idLeft_0]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$18][$$idRight_0]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$idRight_0]  
|PARTITIONED|
+                            -- EXTERNAL_GROUP_BY[$$99, $$97]  |PARTITIONED|
+                                    {
+                                      -- AGGREGATE  |LOCAL|
+                                        -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                    }
+                              -- HASH_PARTITION_EXCHANGE [$$99, $$97]  
|PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- STREAM_SELECT  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- HYBRID_HASH_JOIN 
[$$prefixTokenRight][$$prefixTokenLeft]  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenRight]  |PARTITIONED|
+                                            -- UNNEST  |PARTITIONED|
+                                              -- STREAM_PROJECT  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- REPLICATE  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- 
PRE_CLUSTERED_GROUP_BY[$$30]  |PARTITIONED|
+                                                                {
+                                                                  -- AGGREGATE 
 |LOCAL|
+                                                                    -- 
STREAM_SELECT  |LOCAL|
+                                                                      -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                }
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- STABLE_SORT 
[$$30(ASC), $$i(ASC)]  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                                      -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                        -- 
UNNEST  |PARTITIONED|
+                                                                          -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                            -- 
ASSIGN  |PARTITIONED|
+                                                                              
-- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
 -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                                      -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                            -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                              
-- SORT_MERGE_EXCHANGE [$$104(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
 -- STABLE_SORT [$$104(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EXTERNAL_GROUP_BY[$$111]  |PARTITIONED|
+                                                                               
             {
+                                                                               
               -- AGGREGATE  |LOCAL|
+                                                                               
                 -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
             }
+                                                                               
       -- HASH_PARTITION_EXCHANGE [$$111]  |PARTITIONED|
+                                                                               
         -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                 {
+                                                                               
                   -- AGGREGATE  |LOCAL|
+                                                                               
                     -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                 }
+                                                                               
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
             -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
               -- UNNEST  |PARTITIONED|
+                                                                               
                 -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                   -- ASSIGN  |PARTITIONED|
+                                                                               
                     -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                         -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                          -- HASH_PARTITION_EXCHANGE 
[$$prefixTokenLeft]  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- UNNEST  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                    -- REPLICATE  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  
|PARTITIONED|
+                                                        -- 
PRE_CLUSTERED_GROUP_BY[$$30]  |PARTITIONED|
+                                                                {
+                                                                  -- AGGREGATE 
 |LOCAL|
+                                                                    -- 
STREAM_SELECT  |LOCAL|
+                                                                      -- 
NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                }
+                                                          -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- STABLE_SORT 
[$$30(ASC), $$i(ASC)]  |PARTITIONED|
+                                                              -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                  -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- 
HYBRID_HASH_JOIN [$$token][$$tokenGroupped]  |PARTITIONED|
+                                                                      -- 
ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                        -- 
UNNEST  |PARTITIONED|
+                                                                          -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                            -- 
ASSIGN  |PARTITIONED|
+                                                                              
-- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
 -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                                      -- 
BROADCAST_EXCHANGE  |PARTITIONED|
+                                                                        -- 
ASSIGN  |PARTITIONED|
+                                                                          -- 
RUNNING_AGGREGATE  |PARTITIONED|
+                                                                            -- 
STREAM_PROJECT  |PARTITIONED|
+                                                                              
-- SORT_MERGE_EXCHANGE [$$104(ASC), $$tokenGroupped(ASC) ]  |PARTITIONED|
+                                                                               
 -- STABLE_SORT [$$104(ASC), $$tokenGroupped(ASC)]  |PARTITIONED|
+                                                                               
   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
     -- EXTERNAL_GROUP_BY[$$111]  |PARTITIONED|
+                                                                               
             {
+                                                                               
               -- AGGREGATE  |LOCAL|
+                                                                               
                 -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
             }
+                                                                               
       -- HASH_PARTITION_EXCHANGE [$$111]  |PARTITIONED|
+                                                                               
         -- EXTERNAL_GROUP_BY[$$token]  |PARTITIONED|
+                                                                               
                 {
+                                                                               
                   -- AGGREGATE  |LOCAL|
+                                                                               
                     -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                               
                 }
+                                                                               
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
             -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
               -- UNNEST  |PARTITIONED|
+                                                                               
                 -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                   -- ASSIGN  |PARTITIONED|
+                                                                               
                     -- STREAM_PROJECT  |PARTITIONED|
+                                                                               
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                         -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                               
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                               
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|

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