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Posted to commits@tajo.apache.org by ji...@apache.org on 2015/05/30 06:05:11 UTC

[09/24] tajo git commit: TAJO-1553: Improve broadcast join planning. (jihoon)

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.Sort.plan
new file mode 100644
index 0000000..fa727c0
--- /dev/null
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.Sort.plan
@@ -0,0 +1,153 @@
+explain
+-------------------------------
+SORT(5)
+  => Sort Keys: default.t4.id (INT4) (asc)
+   JOIN(9)(FULL_OUTER)
+     => Join Cond: default.t3.id (INT4) = default.t4.id (INT4)
+     => target list: default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)
+     => out schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+     => in schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+      SCAN(3) on default.jointable14 as t4
+        => target list: default.t4.id (INT4)
+        => out schema: {(1) default.t4.id (INT4)}
+        => in schema: {(2) default.t4.id (INT4), default.t4.name (TEXT)}
+      JOIN(8)(FULL_OUTER)
+        => Join Cond: default.t1.id (INT4) = default.t3.id (INT4)
+        => target list: default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)
+        => out schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+        => in schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+         SCAN(1) on default.jointable13 as t3
+           => target list: default.t3.id (INT4)
+           => out schema: {(1) default.t3.id (INT4)}
+           => in schema: {(2) default.t3.id (INT4), default.t3.name (TEXT)}
+         SCAN(0) on default.jointable11 as t1
+           => target list: default.t1.id (INT4), default.t1.name (TEXT)
+           => out schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+           => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+explain
+-------------------------------
+-------------------------------------------------------------------------------
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000007)
+-------------------------------------------------------------------------------
+|-eb_0000000000000_0000_000007
+   |-eb_0000000000000_0000_000006
+      |-eb_0000000000000_0000_000005
+         |-eb_0000000000000_0000_000004
+         |-eb_0000000000000_0000_000003
+            |-eb_0000000000000_0000_000002
+            |-eb_0000000000000_0000_000001
+-------------------------------------------------------------------------------
+Order of Execution
+-------------------------------------------------------------------------------
+1: eb_0000000000000_0000_000001
+2: eb_0000000000000_0000_000002
+3: eb_0000000000000_0000_000003
+4: eb_0000000000000_0000_000004
+5: eb_0000000000000_0000_000005
+6: eb_0000000000000_0000_000006
+7: eb_0000000000000_0000_000007
+-------------------------------------------------------------------------------
+
+=======================================================
+Block Id: eb_0000000000000_0000_000001 [LEAF]
+=======================================================
+
+[Outgoing]
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.t1.id (INT4), num=32)
+
+SCAN(0) on default.jointable11 as t1
+  => target list: default.t1.id (INT4), default.t1.name (TEXT)
+  => out schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+  => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000002 [LEAF]
+=======================================================
+
+[Outgoing]
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.t3.id (INT4), num=32)
+
+SCAN(1) on default.jointable13 as t3
+  => target list: default.t3.id (INT4)
+  => out schema: {(1) default.t3.id (INT4)}
+  => in schema: {(2) default.t3.id (INT4), default.t3.name (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000003 [INTERMEDIATE]
+=======================================================
+
+[Incoming]
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.t1.id (INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.t3.id (INT4), num=32)
+
+[Outgoing]
+[q_0000000000000_0000] 3 => 5 (type=HASH_SHUFFLE, key=default.t3.id (INT4), num=32)
+
+JOIN(8)(FULL_OUTER)
+  => Join Cond: default.t1.id (INT4) = default.t3.id (INT4)
+  => target list: default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)
+  => out schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+  => in schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+   SCAN(12) on eb_0000000000000_0000_000002
+     => out schema: {(1) default.t3.id (INT4)}
+     => in schema: {(1) default.t3.id (INT4)}
+   SCAN(11) on eb_0000000000000_0000_000001
+     => out schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+     => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000004 [LEAF]
+=======================================================
+
+[Outgoing]
+[q_0000000000000_0000] 4 => 5 (type=HASH_SHUFFLE, key=default.t4.id (INT4), num=32)
+
+SCAN(3) on default.jointable14 as t4
+  => target list: default.t4.id (INT4)
+  => out schema: {(1) default.t4.id (INT4)}
+  => in schema: {(2) default.t4.id (INT4), default.t4.name (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000005 [INTERMEDIATE]
+=======================================================
+
+[Incoming]
+[q_0000000000000_0000] 3 => 5 (type=HASH_SHUFFLE, key=default.t3.id (INT4), num=32)
+[q_0000000000000_0000] 4 => 5 (type=HASH_SHUFFLE, key=default.t4.id (INT4), num=32)
+
+[Outgoing]
+[q_0000000000000_0000] 5 => 6 (type=RANGE_SHUFFLE, key=default.t4.id (INT4), num=32)
+
+SORT(15)
+  => Sort Keys: default.t4.id (INT4) (asc)
+   JOIN(9)(FULL_OUTER)
+     => Join Cond: default.t3.id (INT4) = default.t4.id (INT4)
+     => target list: default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)
+     => out schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+     => in schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+      SCAN(14) on eb_0000000000000_0000_000004
+        => out schema: {(1) default.t4.id (INT4)}
+        => in schema: {(1) default.t4.id (INT4)}
+      SCAN(13) on eb_0000000000000_0000_000003
+        => out schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+        => in schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000006 [ROOT]
+=======================================================
+
+[Incoming]
+[q_0000000000000_0000] 5 => 6 (type=RANGE_SHUFFLE, key=default.t4.id (INT4), num=32)
+
+[Enforcers]
+ 0: sorted input=eb_0000000000000_0000_000005
+
+SORT(5)
+  => Sort Keys: default.t4.id (INT4) (asc)
+   SCAN(16) on eb_0000000000000_0000_000005
+     => out schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+     => in schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000007 [TERMINAL]
+=======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.Sort_NoBroadcast.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.Sort_NoBroadcast.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.Sort_NoBroadcast.plan
new file mode 100644
index 0000000..fa727c0
--- /dev/null
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.Sort_NoBroadcast.plan
@@ -0,0 +1,153 @@
+explain
+-------------------------------
+SORT(5)
+  => Sort Keys: default.t4.id (INT4) (asc)
+   JOIN(9)(FULL_OUTER)
+     => Join Cond: default.t3.id (INT4) = default.t4.id (INT4)
+     => target list: default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)
+     => out schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+     => in schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+      SCAN(3) on default.jointable14 as t4
+        => target list: default.t4.id (INT4)
+        => out schema: {(1) default.t4.id (INT4)}
+        => in schema: {(2) default.t4.id (INT4), default.t4.name (TEXT)}
+      JOIN(8)(FULL_OUTER)
+        => Join Cond: default.t1.id (INT4) = default.t3.id (INT4)
+        => target list: default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)
+        => out schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+        => in schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+         SCAN(1) on default.jointable13 as t3
+           => target list: default.t3.id (INT4)
+           => out schema: {(1) default.t3.id (INT4)}
+           => in schema: {(2) default.t3.id (INT4), default.t3.name (TEXT)}
+         SCAN(0) on default.jointable11 as t1
+           => target list: default.t1.id (INT4), default.t1.name (TEXT)
+           => out schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+           => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+explain
+-------------------------------
+-------------------------------------------------------------------------------
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000007)
+-------------------------------------------------------------------------------
+|-eb_0000000000000_0000_000007
+   |-eb_0000000000000_0000_000006
+      |-eb_0000000000000_0000_000005
+         |-eb_0000000000000_0000_000004
+         |-eb_0000000000000_0000_000003
+            |-eb_0000000000000_0000_000002
+            |-eb_0000000000000_0000_000001
+-------------------------------------------------------------------------------
+Order of Execution
+-------------------------------------------------------------------------------
+1: eb_0000000000000_0000_000001
+2: eb_0000000000000_0000_000002
+3: eb_0000000000000_0000_000003
+4: eb_0000000000000_0000_000004
+5: eb_0000000000000_0000_000005
+6: eb_0000000000000_0000_000006
+7: eb_0000000000000_0000_000007
+-------------------------------------------------------------------------------
+
+=======================================================
+Block Id: eb_0000000000000_0000_000001 [LEAF]
+=======================================================
+
+[Outgoing]
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.t1.id (INT4), num=32)
+
+SCAN(0) on default.jointable11 as t1
+  => target list: default.t1.id (INT4), default.t1.name (TEXT)
+  => out schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+  => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000002 [LEAF]
+=======================================================
+
+[Outgoing]
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.t3.id (INT4), num=32)
+
+SCAN(1) on default.jointable13 as t3
+  => target list: default.t3.id (INT4)
+  => out schema: {(1) default.t3.id (INT4)}
+  => in schema: {(2) default.t3.id (INT4), default.t3.name (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000003 [INTERMEDIATE]
+=======================================================
+
+[Incoming]
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.t1.id (INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.t3.id (INT4), num=32)
+
+[Outgoing]
+[q_0000000000000_0000] 3 => 5 (type=HASH_SHUFFLE, key=default.t3.id (INT4), num=32)
+
+JOIN(8)(FULL_OUTER)
+  => Join Cond: default.t1.id (INT4) = default.t3.id (INT4)
+  => target list: default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)
+  => out schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+  => in schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+   SCAN(12) on eb_0000000000000_0000_000002
+     => out schema: {(1) default.t3.id (INT4)}
+     => in schema: {(1) default.t3.id (INT4)}
+   SCAN(11) on eb_0000000000000_0000_000001
+     => out schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+     => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000004 [LEAF]
+=======================================================
+
+[Outgoing]
+[q_0000000000000_0000] 4 => 5 (type=HASH_SHUFFLE, key=default.t4.id (INT4), num=32)
+
+SCAN(3) on default.jointable14 as t4
+  => target list: default.t4.id (INT4)
+  => out schema: {(1) default.t4.id (INT4)}
+  => in schema: {(2) default.t4.id (INT4), default.t4.name (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000005 [INTERMEDIATE]
+=======================================================
+
+[Incoming]
+[q_0000000000000_0000] 3 => 5 (type=HASH_SHUFFLE, key=default.t3.id (INT4), num=32)
+[q_0000000000000_0000] 4 => 5 (type=HASH_SHUFFLE, key=default.t4.id (INT4), num=32)
+
+[Outgoing]
+[q_0000000000000_0000] 5 => 6 (type=RANGE_SHUFFLE, key=default.t4.id (INT4), num=32)
+
+SORT(15)
+  => Sort Keys: default.t4.id (INT4) (asc)
+   JOIN(9)(FULL_OUTER)
+     => Join Cond: default.t3.id (INT4) = default.t4.id (INT4)
+     => target list: default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)
+     => out schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+     => in schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+      SCAN(14) on eb_0000000000000_0000_000004
+        => out schema: {(1) default.t4.id (INT4)}
+        => in schema: {(1) default.t4.id (INT4)}
+      SCAN(13) on eb_0000000000000_0000_000003
+        => out schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+        => in schema: {(3) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000006 [ROOT]
+=======================================================
+
+[Incoming]
+[q_0000000000000_0000] 5 => 6 (type=RANGE_SHUFFLE, key=default.t4.id (INT4), num=32)
+
+[Enforcers]
+ 0: sorted input=eb_0000000000000_0000_000005
+
+SORT(5)
+  => Sort Keys: default.t4.id (INT4) (asc)
+   SCAN(16) on eb_0000000000000_0000_000005
+     => out schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+     => in schema: {(4) default.t1.id (INT4), default.t1.name (TEXT), default.t3.id (INT4), default.t4.id (INT4)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000007 [TERMINAL]
+=======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.result
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.result b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.result
new file mode 100644
index 0000000..8d9d294
--- /dev/null
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinPredicationCaseByCase1.1.result
@@ -0,0 +1,9 @@
+id,name,id,id
+-------------------------------
+null,null,null,1
+2,table11-2,2,2
+3,table11-3,3,3
+null,null,null,4
+1,table11-1,null,null
+4,table11-4,null,null
+5,table11-5,null,null

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Hash.plan
index 38ffa15..580a217 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Hash.plan
@@ -23,40 +23,66 @@ Execution Block Graph (TERMINAL - eb_0000000000000_0000_000005)
 |-eb_0000000000000_0000_000005
    |-eb_0000000000000_0000_000004
       |-eb_0000000000000_0000_000003
+         |-eb_0000000000000_0000_000002
+         |-eb_0000000000000_0000_000001
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
-3: eb_0000000000000_0000_000005
+1: eb_0000000000000_0000_000001
+2: eb_0000000000000_0000_000002
+3: eb_0000000000000_0000_000003
+4: eb_0000000000000_0000_000004
+5: eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [LEAF]
+Block Id: eb_0000000000000_0000_000001 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 3 => 4 (type=RANGE_SHUFFLE, key=default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.empty_orders.o_orderkey (INT4), num=32)
 
-[Enforcers]
- 0: type=Broadcast, tables=default.empty_orders
- 1: type=Broadcast, tables=default.customer
+SCAN(0) on default.empty_orders
+  => target list: default.empty_orders.o_orderkey (INT4)
+  => out schema: {(1) default.empty_orders.o_orderkey (INT4)}
+  => in schema: {(9) default.empty_orders.o_clerk (TEXT), default.empty_orders.o_comment (TEXT), default.empty_orders.o_custkey (INT4), default.empty_orders.o_orderdate (TEXT), default.empty_orders.o_orderkey (INT4), default.empty_orders.o_orderpriority (TEXT), default.empty_orders.o_orderstatus (TEXT), default.empty_orders.o_shippriority (INT4), default.empty_orders.o_totalprice (FLOAT8)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000002 [LEAF]
+=======================================================
+
+[Outgoing]
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.customer.c_custkey (INT4), num=32)
+
+SCAN(1) on default.customer
+  => target list: default.customer.c_custkey (INT4)
+  => out schema: {(1) default.customer.c_custkey (INT4)}
+  => in schema: {(8) default.customer.c_acctbal (FLOAT8), default.customer.c_address (TEXT), default.customer.c_comment (TEXT), default.customer.c_custkey (INT4), default.customer.c_mktsegment (TEXT), default.customer.c_name (TEXT), default.customer.c_nationkey (INT4), default.customer.c_phone (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000003 [INTERMEDIATE]
+=======================================================
 
-SORT(8)
+[Incoming]
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.empty_orders.o_orderkey (INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.customer.c_custkey (INT4), num=32)
+
+[Outgoing]
+[q_0000000000000_0000] 3 => 4 (type=RANGE_SHUFFLE, key=default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4), num=32)
+
+SORT(10)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.empty_orders.o_orderkey (INT4) (asc)
    JOIN(6)(FULL_OUTER)
      => Join Cond: default.customer.c_custkey (INT4) = default.empty_orders.o_orderkey (INT4)
      => target list: default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)
      => out schema: {(2) default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)}
      => in schema: {(2) default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)}
-      SCAN(1) on default.customer
-        => target list: default.customer.c_custkey (INT4)
+      SCAN(9) on eb_0000000000000_0000_000002
         => out schema: {(1) default.customer.c_custkey (INT4)}
-        => in schema: {(8) default.customer.c_acctbal (FLOAT8), default.customer.c_address (TEXT), default.customer.c_comment (TEXT), default.customer.c_custkey (INT4), default.customer.c_mktsegment (TEXT), default.customer.c_name (TEXT), default.customer.c_nationkey (INT4), default.customer.c_phone (TEXT)}
-      SCAN(0) on default.empty_orders
-        => target list: default.empty_orders.o_orderkey (INT4)
+        => in schema: {(1) default.customer.c_custkey (INT4)}
+      SCAN(8) on eb_0000000000000_0000_000001
         => out schema: {(1) default.empty_orders.o_orderkey (INT4)}
-        => in schema: {(9) default.empty_orders.o_clerk (TEXT), default.empty_orders.o_comment (TEXT), default.empty_orders.o_custkey (INT4), default.empty_orders.o_orderdate (TEXT), default.empty_orders.o_orderkey (INT4), default.empty_orders.o_orderpriority (TEXT), default.empty_orders.o_orderstatus (TEXT), default.empty_orders.o_shippriority (INT4), default.empty_orders.o_totalprice (FLOAT8)}
+        => in schema: {(1) default.empty_orders.o_orderkey (INT4)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000004 [ROOT]
@@ -70,7 +96,7 @@ Block Id: eb_0000000000000_0000_000004 [ROOT]
 
 SORT(3)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.empty_orders.o_orderkey (INT4) (asc)
-   SCAN(9) on eb_0000000000000_0000_000003
+   SCAN(11) on eb_0000000000000_0000_000003
      => out schema: {(2) default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)}
      => in schema: {(2) default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Sort.plan
index 38ffa15..580a217 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testFullOuterJoinWithEmptyTable1.Sort.plan
@@ -23,40 +23,66 @@ Execution Block Graph (TERMINAL - eb_0000000000000_0000_000005)
 |-eb_0000000000000_0000_000005
    |-eb_0000000000000_0000_000004
       |-eb_0000000000000_0000_000003
+         |-eb_0000000000000_0000_000002
+         |-eb_0000000000000_0000_000001
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
-3: eb_0000000000000_0000_000005
+1: eb_0000000000000_0000_000001
+2: eb_0000000000000_0000_000002
+3: eb_0000000000000_0000_000003
+4: eb_0000000000000_0000_000004
+5: eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [LEAF]
+Block Id: eb_0000000000000_0000_000001 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 3 => 4 (type=RANGE_SHUFFLE, key=default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.empty_orders.o_orderkey (INT4), num=32)
 
-[Enforcers]
- 0: type=Broadcast, tables=default.empty_orders
- 1: type=Broadcast, tables=default.customer
+SCAN(0) on default.empty_orders
+  => target list: default.empty_orders.o_orderkey (INT4)
+  => out schema: {(1) default.empty_orders.o_orderkey (INT4)}
+  => in schema: {(9) default.empty_orders.o_clerk (TEXT), default.empty_orders.o_comment (TEXT), default.empty_orders.o_custkey (INT4), default.empty_orders.o_orderdate (TEXT), default.empty_orders.o_orderkey (INT4), default.empty_orders.o_orderpriority (TEXT), default.empty_orders.o_orderstatus (TEXT), default.empty_orders.o_shippriority (INT4), default.empty_orders.o_totalprice (FLOAT8)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000002 [LEAF]
+=======================================================
+
+[Outgoing]
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.customer.c_custkey (INT4), num=32)
+
+SCAN(1) on default.customer
+  => target list: default.customer.c_custkey (INT4)
+  => out schema: {(1) default.customer.c_custkey (INT4)}
+  => in schema: {(8) default.customer.c_acctbal (FLOAT8), default.customer.c_address (TEXT), default.customer.c_comment (TEXT), default.customer.c_custkey (INT4), default.customer.c_mktsegment (TEXT), default.customer.c_name (TEXT), default.customer.c_nationkey (INT4), default.customer.c_phone (TEXT)}
+
+=======================================================
+Block Id: eb_0000000000000_0000_000003 [INTERMEDIATE]
+=======================================================
 
-SORT(8)
+[Incoming]
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.empty_orders.o_orderkey (INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.customer.c_custkey (INT4), num=32)
+
+[Outgoing]
+[q_0000000000000_0000] 3 => 4 (type=RANGE_SHUFFLE, key=default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4), num=32)
+
+SORT(10)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.empty_orders.o_orderkey (INT4) (asc)
    JOIN(6)(FULL_OUTER)
      => Join Cond: default.customer.c_custkey (INT4) = default.empty_orders.o_orderkey (INT4)
      => target list: default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)
      => out schema: {(2) default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)}
      => in schema: {(2) default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)}
-      SCAN(1) on default.customer
-        => target list: default.customer.c_custkey (INT4)
+      SCAN(9) on eb_0000000000000_0000_000002
         => out schema: {(1) default.customer.c_custkey (INT4)}
-        => in schema: {(8) default.customer.c_acctbal (FLOAT8), default.customer.c_address (TEXT), default.customer.c_comment (TEXT), default.customer.c_custkey (INT4), default.customer.c_mktsegment (TEXT), default.customer.c_name (TEXT), default.customer.c_nationkey (INT4), default.customer.c_phone (TEXT)}
-      SCAN(0) on default.empty_orders
-        => target list: default.empty_orders.o_orderkey (INT4)
+        => in schema: {(1) default.customer.c_custkey (INT4)}
+      SCAN(8) on eb_0000000000000_0000_000001
         => out schema: {(1) default.empty_orders.o_orderkey (INT4)}
-        => in schema: {(9) default.empty_orders.o_clerk (TEXT), default.empty_orders.o_comment (TEXT), default.empty_orders.o_custkey (INT4), default.empty_orders.o_orderdate (TEXT), default.empty_orders.o_orderkey (INT4), default.empty_orders.o_orderpriority (TEXT), default.empty_orders.o_orderstatus (TEXT), default.empty_orders.o_shippriority (INT4), default.empty_orders.o_totalprice (FLOAT8)}
+        => in schema: {(1) default.empty_orders.o_orderkey (INT4)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000004 [ROOT]
@@ -70,7 +96,7 @@ Block Id: eb_0000000000000_0000_000004 [ROOT]
 
 SORT(3)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.empty_orders.o_orderkey (INT4) (asc)
-   SCAN(9) on eb_0000000000000_0000_000003
+   SCAN(11) on eb_0000000000000_0000_000003
      => out schema: {(2) default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)}
      => in schema: {(2) default.customer.c_custkey (INT4), default.empty_orders.o_orderkey (INT4)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Hash.plan
index 21e7d4f..91199f6 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Hash.plan
@@ -41,7 +41,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.nation
 
-SORT(8)
+SORT(10)
   => Sort Keys: default.region.r_name (TEXT) (asc),default.nation.n_name (TEXT) (asc)
    JOIN(6)(LEFT_OUTER)
      => Join Cond: default.nation.n_regionkey (INT4) = default.region.r_regionkey (INT4) AND default.region.r_name (TEXT) IN (AMERICA, ASIA)
@@ -69,7 +69,7 @@ Block Id: eb_0000000000000_0000_000004 [ROOT]
 
 SORT(3)
   => Sort Keys: default.region.r_name (TEXT) (asc),default.nation.n_name (TEXT) (asc)
-   SCAN(9) on eb_0000000000000_0000_000003
+   SCAN(11) on eb_0000000000000_0000_000003
      => out schema: {(4) default.nation.n_name (TEXT), default.nation.n_regionkey (INT4), default.region.r_name (TEXT), default.region.r_regionkey (INT4)}
      => in schema: {(4) default.nation.n_name (TEXT), default.nation.n_regionkey (INT4), default.region.r_name (TEXT), default.region.r_regionkey (INT4)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Sort.plan
index 21e7d4f..91199f6 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testJoinFilterOfRowPreservedTable1.Sort.plan
@@ -41,7 +41,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.nation
 
-SORT(8)
+SORT(10)
   => Sort Keys: default.region.r_name (TEXT) (asc),default.nation.n_name (TEXT) (asc)
    JOIN(6)(LEFT_OUTER)
      => Join Cond: default.nation.n_regionkey (INT4) = default.region.r_regionkey (INT4) AND default.region.r_name (TEXT) IN (AMERICA, ASIA)
@@ -69,7 +69,7 @@ Block Id: eb_0000000000000_0000_000004 [ROOT]
 
 SORT(3)
   => Sort Keys: default.region.r_name (TEXT) (asc),default.nation.n_name (TEXT) (asc)
-   SCAN(9) on eb_0000000000000_0000_000003
+   SCAN(11) on eb_0000000000000_0000_000003
      => out schema: {(4) default.nation.n_name (TEXT), default.nation.n_regionkey (INT4), default.region.r_name (TEXT), default.region.r_regionkey (INT4)}
      => in schema: {(4) default.nation.n_name (TEXT), default.nation.n_regionkey (INT4), default.region.r_name (TEXT), default.region.r_regionkey (INT4)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Hash.plan
index 539f3da..ae40796 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Hash.plan
@@ -41,7 +41,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.orders
 
-SORT(8)
+SORT(10)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.orders.o_orderkey (INT4) (asc)
    JOIN(6)(LEFT_OUTER)
      => Join Cond: default.customer.c_custkey (INT4) = default.orders.o_orderkey (INT4)
@@ -69,7 +69,7 @@ Block Id: eb_0000000000000_0000_000004 [ROOT]
 
 SORT(3)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.orders.o_orderkey (INT4) (asc)
-   SCAN(9) on eb_0000000000000_0000_000003
+   SCAN(11) on eb_0000000000000_0000_000003
      => out schema: {(4) default.customer.c_custkey (INT4), default.orders.o_orderdate (TEXT), default.orders.o_orderkey (INT4), default.orders.o_orderstatus (TEXT)}
      => in schema: {(4) default.customer.c_custkey (INT4), default.orders.o_orderdate (TEXT), default.orders.o_orderkey (INT4), default.orders.o_orderstatus (TEXT)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Sort.plan
index 539f3da..ae40796 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin1.Sort.plan
@@ -41,7 +41,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.orders
 
-SORT(8)
+SORT(10)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.orders.o_orderkey (INT4) (asc)
    JOIN(6)(LEFT_OUTER)
      => Join Cond: default.customer.c_custkey (INT4) = default.orders.o_orderkey (INT4)
@@ -69,7 +69,7 @@ Block Id: eb_0000000000000_0000_000004 [ROOT]
 
 SORT(3)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.orders.o_orderkey (INT4) (asc)
-   SCAN(9) on eb_0000000000000_0000_000003
+   SCAN(11) on eb_0000000000000_0000_000003
      => out schema: {(4) default.customer.c_custkey (INT4), default.orders.o_orderdate (TEXT), default.orders.o_orderkey (INT4), default.orders.o_orderstatus (TEXT)}
      => in schema: {(4) default.customer.c_custkey (INT4), default.orders.o_orderdate (TEXT), default.orders.o_orderkey (INT4), default.orders.o_orderstatus (TEXT)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Hash.plan
index 3ebc3e4..997d761 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Hash.plan
@@ -34,19 +34,19 @@ JOIN(11)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000008)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000008
+   |-eb_0000000000000_0000_000007
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000007
+2: eb_0000000000000_0000_000008
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000007 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -87,5 +87,5 @@ JOIN(11)(LEFT_OUTER)
            => in schema: {(16) default.a.l_comment (TEXT), default.a.l_commitdate (TEXT), default.a.l_discount (FLOAT8), default.a.l_extendedprice (FLOAT8), default.a.l_linenumber (INT4), default.a.l_linestatus (TEXT), default.a.l_orderkey (INT4), default.a.l_partkey (INT4), default.a.l_quantity (FLOAT8), default.a.l_receiptdate (TEXT), default.a.l_returnflag (TEXT), default.a.l_shipdate (TEXT), default.a.l_shipinstruct (TEXT), default.a.l_shipmode (TEXT), default.a.l_suppkey (INT4), default.a.l_tax (FLOAT8)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000008 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Sort.plan
index 3ebc3e4..997d761 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin2.Sort.plan
@@ -34,19 +34,19 @@ JOIN(11)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000008)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000008
+   |-eb_0000000000000_0000_000007
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000007
+2: eb_0000000000000_0000_000008
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000007 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -87,5 +87,5 @@ JOIN(11)(LEFT_OUTER)
            => in schema: {(16) default.a.l_comment (TEXT), default.a.l_commitdate (TEXT), default.a.l_discount (FLOAT8), default.a.l_extendedprice (FLOAT8), default.a.l_linenumber (INT4), default.a.l_linestatus (TEXT), default.a.l_orderkey (INT4), default.a.l_partkey (INT4), default.a.l_quantity (FLOAT8), default.a.l_receiptdate (TEXT), default.a.l_returnflag (TEXT), default.a.l_shipdate (TEXT), default.a.l_shipinstruct (TEXT), default.a.l_shipmode (TEXT), default.a.l_suppkey (INT4), default.a.l_tax (FLOAT8)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000008 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Hash.plan
index 1a8f3b5..2418b98 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Hash.plan
@@ -52,26 +52,26 @@ JOIN(17)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000012)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000012
+   |-eb_0000000000000_0000_000011
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000011
+2: eb_0000000000000_0000_000012
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000011 [ROOT]
 =======================================================
 
 [Enforcers]
- 0: type=Broadcast, tables=default.b
- 1: type=Broadcast, tables=default.c
- 2: type=Broadcast, tables=default.d
- 3: type=Broadcast, tables=default.e
+ 0: type=Broadcast, tables=default.e
+ 1: type=Broadcast, tables=default.b
+ 2: type=Broadcast, tables=default.c
+ 3: type=Broadcast, tables=default.d
  4: type=Broadcast, tables=default.f
 
 JOIN(17)(LEFT_OUTER)
@@ -125,5 +125,5 @@ JOIN(17)(LEFT_OUTER)
                  => in schema: {(8) default.a.c_acctbal (FLOAT8), default.a.c_address (TEXT), default.a.c_comment (TEXT), default.a.c_custkey (INT4), default.a.c_mktsegment (TEXT), default.a.c_name (TEXT), default.a.c_nationkey (INT4), default.a.c_phone (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000012 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Sort.plan
index 1a8f3b5..2418b98 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoin3.Sort.plan
@@ -52,26 +52,26 @@ JOIN(17)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000012)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000012
+   |-eb_0000000000000_0000_000011
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000011
+2: eb_0000000000000_0000_000012
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000011 [ROOT]
 =======================================================
 
 [Enforcers]
- 0: type=Broadcast, tables=default.b
- 1: type=Broadcast, tables=default.c
- 2: type=Broadcast, tables=default.d
- 3: type=Broadcast, tables=default.e
+ 0: type=Broadcast, tables=default.e
+ 1: type=Broadcast, tables=default.b
+ 2: type=Broadcast, tables=default.c
+ 3: type=Broadcast, tables=default.d
  4: type=Broadcast, tables=default.f
 
 JOIN(17)(LEFT_OUTER)
@@ -125,5 +125,5 @@ JOIN(17)(LEFT_OUTER)
                  => in schema: {(8) default.a.c_acctbal (FLOAT8), default.a.c_address (TEXT), default.a.c_comment (TEXT), default.a.c_custkey (INT4), default.a.c_mktsegment (TEXT), default.a.c_name (TEXT), default.a.c_nationkey (INT4), default.a.c_phone (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000012 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Hash.plan
index b6064cc..ea058ca 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Hash.plan
@@ -25,19 +25,19 @@ JOIN(8)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -68,5 +68,5 @@ JOIN(8)(LEFT_OUTER)
         => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Sort.plan
index b6064cc..ea058ca 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase1.1.Sort.plan
@@ -25,19 +25,19 @@ JOIN(8)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -68,5 +68,5 @@ JOIN(8)(LEFT_OUTER)
         => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Hash.plan
index 0a22bad..f5e0586 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Hash.plan
@@ -34,24 +34,24 @@ JOIN(11)(INNER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000008)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000008
+   |-eb_0000000000000_0000_000007
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000007
+2: eb_0000000000000_0000_000008
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000007 [ROOT]
 =======================================================
 
 [Enforcers]
- 0: type=Broadcast, tables=default.t2
- 1: type=Broadcast, tables=default.t3
+ 0: type=Broadcast, tables=default.t3
+ 1: type=Broadcast, tables=default.t2
  2: type=Broadcast, tables=default.t4
 
 JOIN(11)(INNER)
@@ -87,5 +87,5 @@ JOIN(11)(INNER)
            => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000008 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Sort.plan
index 0a22bad..f5e0586 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2.1.Sort.plan
@@ -34,24 +34,24 @@ JOIN(11)(INNER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000008)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000008
+   |-eb_0000000000000_0000_000007
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000007
+2: eb_0000000000000_0000_000008
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000007 [ROOT]
 =======================================================
 
 [Enforcers]
- 0: type=Broadcast, tables=default.t2
- 1: type=Broadcast, tables=default.t3
+ 0: type=Broadcast, tables=default.t3
+ 1: type=Broadcast, tables=default.t2
  2: type=Broadcast, tables=default.t4
 
 JOIN(11)(INNER)
@@ -87,5 +87,5 @@ JOIN(11)(INNER)
            => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000008 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Hash.plan
index ab1b487..a35e200 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Hash.plan
@@ -37,26 +37,25 @@ JOIN(12)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000008)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000008
+   |-eb_0000000000000_0000_000007
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000007
+2: eb_0000000000000_0000_000008
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000007 [ROOT]
 =======================================================
 
 [Enforcers]
- 0: type=Broadcast, tables=default.t1
- 1: type=Broadcast, tables=default.t4
- 2: type=Broadcast, tables=default.t3
- 3: type=Broadcast, tables=default.t2
+ 0: type=Broadcast, tables=default.t4
+ 1: type=Broadcast, tables=default.t3
+ 2: type=Broadcast, tables=default.t2
 
 JOIN(12)(LEFT_OUTER)
   => Join Cond: default.t1.id (INT4) = default.t2.id (INT4)
@@ -94,5 +93,5 @@ JOIN(12)(LEFT_OUTER)
            => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000008 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Sort.plan
index ab1b487..a35e200 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase2_1.1.Sort.plan
@@ -37,26 +37,25 @@ JOIN(12)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000008)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000008
+   |-eb_0000000000000_0000_000007
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000007
+2: eb_0000000000000_0000_000008
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000007 [ROOT]
 =======================================================
 
 [Enforcers]
- 0: type=Broadcast, tables=default.t1
- 1: type=Broadcast, tables=default.t4
- 2: type=Broadcast, tables=default.t3
- 3: type=Broadcast, tables=default.t2
+ 0: type=Broadcast, tables=default.t4
+ 1: type=Broadcast, tables=default.t3
+ 2: type=Broadcast, tables=default.t2
 
 JOIN(12)(LEFT_OUTER)
   => Join Cond: default.t1.id (INT4) = default.t2.id (INT4)
@@ -94,5 +93,5 @@ JOIN(12)(LEFT_OUTER)
            => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000008 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Hash.plan
index 50c41c9..79ce689 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Hash.plan
@@ -25,19 +25,19 @@ JOIN(8)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -68,5 +68,5 @@ JOIN(8)(LEFT_OUTER)
         => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Sort.plan
index 50c41c9..79ce689 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase3.1.Sort.plan
@@ -25,19 +25,19 @@ JOIN(8)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -68,5 +68,5 @@ JOIN(8)(LEFT_OUTER)
         => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Hash.plan
index 1e2809e..ad27e6f 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Hash.plan
@@ -26,19 +26,19 @@ JOIN(8)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -70,5 +70,5 @@ JOIN(8)(LEFT_OUTER)
         => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Sort.plan
index 1e2809e..ad27e6f 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase4.1.Sort.plan
@@ -26,19 +26,19 @@ JOIN(8)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -70,5 +70,5 @@ JOIN(8)(LEFT_OUTER)
         => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Hash.plan
index 88a955f..88cf366 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Hash.plan
@@ -26,19 +26,19 @@ JOIN(9)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -70,5 +70,5 @@ JOIN(9)(LEFT_OUTER)
         => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Sort.plan
index 88a955f..88cf366 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase5.1.Sort.plan
@@ -26,19 +26,19 @@ JOIN(9)(LEFT_OUTER)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -70,5 +70,5 @@ JOIN(9)(LEFT_OUTER)
         => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Hash.plan
index d9e214c..b23896b 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Hash.plan
@@ -27,19 +27,19 @@ SELECTION(5)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -72,5 +72,5 @@ SELECTION(5)
            => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Sort.plan
index d9e214c..b23896b 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinPredicationCaseByCase6.1.Sort.plan
@@ -27,19 +27,19 @@ SELECTION(5)
 explain
 -------------------------------
 -------------------------------------------------------------------------------
-Execution Block Graph (TERMINAL - eb_0000000000000_0000_000004)
+Execution Block Graph (TERMINAL - eb_0000000000000_0000_000006)
 -------------------------------------------------------------------------------
-|-eb_0000000000000_0000_000004
-   |-eb_0000000000000_0000_000003
+|-eb_0000000000000_0000_000006
+   |-eb_0000000000000_0000_000005
 -------------------------------------------------------------------------------
 Order of Execution
 -------------------------------------------------------------------------------
-1: eb_0000000000000_0000_000003
-2: eb_0000000000000_0000_000004
+1: eb_0000000000000_0000_000005
+2: eb_0000000000000_0000_000006
 -------------------------------------------------------------------------------
 
 =======================================================
-Block Id: eb_0000000000000_0000_000003 [ROOT]
+Block Id: eb_0000000000000_0000_000005 [ROOT]
 =======================================================
 
 [Enforcers]
@@ -72,5 +72,5 @@ SELECTION(5)
            => in schema: {(2) default.t1.id (INT4), default.t1.name (TEXT)}
 
 =======================================================
-Block Id: eb_0000000000000_0000_000004 [TERMINAL]
+Block Id: eb_0000000000000_0000_000006 [TERMINAL]
 =======================================================

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Hash.plan
index cc8a491..9ce925e 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Hash.plan
@@ -45,7 +45,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.orders
 
-SORT(8)
+SORT(10)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.orders.o_orderkey (INT4) (asc)
    JOIN(6)(LEFT_OUTER)
      => Join Cond: default.customer.c_custkey (INT4) = default.orders.o_orderkey (INT4)
@@ -77,7 +77,7 @@ PROJECTION(4)
   => in  schema: {(2) default.customer.c_custkey (INT4), default.orders.o_orderkey (INT4)}
    SORT(3)
      => Sort Keys: default.customer.c_custkey (INT4) (asc),default.orders.o_orderkey (INT4) (asc)
-      SCAN(9) on eb_0000000000000_0000_000003
+      SCAN(11) on eb_0000000000000_0000_000003
         => out schema: {(2) default.customer.c_custkey (INT4), default.orders.o_orderkey (INT4)}
         => in schema: {(2) default.customer.c_custkey (INT4), default.orders.o_orderkey (INT4)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Sort.plan
index cc8a491..9ce925e 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithConstantExpr1.Sort.plan
@@ -45,7 +45,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.orders
 
-SORT(8)
+SORT(10)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.orders.o_orderkey (INT4) (asc)
    JOIN(6)(LEFT_OUTER)
      => Join Cond: default.customer.c_custkey (INT4) = default.orders.o_orderkey (INT4)
@@ -77,7 +77,7 @@ PROJECTION(4)
   => in  schema: {(2) default.customer.c_custkey (INT4), default.orders.o_orderkey (INT4)}
    SORT(3)
      => Sort Keys: default.customer.c_custkey (INT4) (asc),default.orders.o_orderkey (INT4) (asc)
-      SCAN(9) on eb_0000000000000_0000_000003
+      SCAN(11) on eb_0000000000000_0000_000003
         => out schema: {(2) default.customer.c_custkey (INT4), default.orders.o_orderkey (INT4)}
         => in schema: {(2) default.customer.c_custkey (INT4), default.orders.o_orderkey (INT4)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Hash.plan
index e35e6a5..8861bab 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Hash.plan
@@ -41,7 +41,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.empty_orders
 
-SORT(8)
+SORT(10)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.empty_orders.o_orderkey (INT4) (asc)
    JOIN(6)(LEFT_OUTER)
      => Join Cond: default.customer.c_custkey (INT4) = default.empty_orders.o_orderkey (INT4)
@@ -69,7 +69,7 @@ Block Id: eb_0000000000000_0000_000004 [ROOT]
 
 SORT(3)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.empty_orders.o_orderkey (INT4) (asc)
-   SCAN(9) on eb_0000000000000_0000_000003
+   SCAN(11) on eb_0000000000000_0000_000003
      => out schema: {(4) default.customer.c_custkey (INT4), default.empty_orders.o_orderdate (TEXT), default.empty_orders.o_orderkey (INT4), default.empty_orders.o_orderstatus (TEXT)}
      => in schema: {(4) default.customer.c_custkey (INT4), default.empty_orders.o_orderdate (TEXT), default.empty_orders.o_orderkey (INT4), default.empty_orders.o_orderstatus (TEXT)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Sort.plan
index e35e6a5..8861bab 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable1.Sort.plan
@@ -41,7 +41,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.empty_orders
 
-SORT(8)
+SORT(10)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.empty_orders.o_orderkey (INT4) (asc)
    JOIN(6)(LEFT_OUTER)
      => Join Cond: default.customer.c_custkey (INT4) = default.empty_orders.o_orderkey (INT4)
@@ -69,7 +69,7 @@ Block Id: eb_0000000000000_0000_000004 [ROOT]
 
 SORT(3)
   => Sort Keys: default.customer.c_custkey (INT4) (asc),default.empty_orders.o_orderkey (INT4) (asc)
-   SCAN(9) on eb_0000000000000_0000_000003
+   SCAN(11) on eb_0000000000000_0000_000003
      => out schema: {(4) default.customer.c_custkey (INT4), default.empty_orders.o_orderdate (TEXT), default.empty_orders.o_orderkey (INT4), default.empty_orders.o_orderstatus (TEXT)}
      => in schema: {(4) default.customer.c_custkey (INT4), default.empty_orders.o_orderdate (TEXT), default.empty_orders.o_orderkey (INT4), default.empty_orders.o_orderstatus (TEXT)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Hash.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Hash.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Hash.plan
index bca8356..1fa968f 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Hash.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Hash.plan
@@ -48,7 +48,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.empty_orders
 
-GROUP_BY(9)(c_custkey)
+GROUP_BY(11)(c_custkey)
   => exprs: (sum(default.empty_orders.o_orderkey (INT4)),max(default.empty_orders.o_orderstatus (TEXT)),max(default.empty_orders.o_orderdate (TEXT)))
   => target list: default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)
   => out schema:{(4) default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)}
@@ -77,14 +77,14 @@ Block Id: eb_0000000000000_0000_000004 [INTERMEDIATE]
 [Outgoing]
 [q_0000000000000_0000] 4 => 5 (type=RANGE_SHUFFLE, key=default.customer.c_custkey (INT4), num=32)
 
-SORT(11)
+SORT(13)
   => Sort Keys: default.customer.c_custkey (INT4) (asc)
    GROUP_BY(3)(c_custkey)
      => exprs: (sum(?sum_5 (INT8)),max(?max_6 (TEXT)),max(?max_7 (TEXT)))
      => target list: default.customer.c_custkey (INT4), ?sum (INT8), ?max_1 (TEXT), ?max_2 (TEXT)
      => out schema:{(4) ?max_1 (TEXT), ?max_2 (TEXT), ?sum (INT8), default.customer.c_custkey (INT4)}
      => in schema:{(4) default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)}
-      SCAN(10) on eb_0000000000000_0000_000003
+      SCAN(12) on eb_0000000000000_0000_000003
         => out schema: {(4) default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)}
         => in schema: {(4) default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)}
 
@@ -100,7 +100,7 @@ Block Id: eb_0000000000000_0000_000005 [ROOT]
 
 SORT(4)
   => Sort Keys: default.customer.c_custkey (INT4) (asc)
-   SCAN(12) on eb_0000000000000_0000_000004
+   SCAN(14) on eb_0000000000000_0000_000004
      => out schema: {(4) ?max_1 (TEXT), ?max_2 (TEXT), ?sum (INT8), default.customer.c_custkey (INT4)}
      => in schema: {(4) ?max_1 (TEXT), ?max_2 (TEXT), ?sum (INT8), default.customer.c_custkey (INT4)}
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/8fd9ae72/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Sort.plan
----------------------------------------------------------------------
diff --git a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Sort.plan b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Sort.plan
index bca8356..1fa968f 100644
--- a/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Sort.plan
+++ b/tajo-core/src/test/resources/results/TestOuterJoinQuery/testLeftOuterJoinWithEmptyTable2.Sort.plan
@@ -48,7 +48,7 @@ Block Id: eb_0000000000000_0000_000003 [LEAF]
 [Enforcers]
  0: type=Broadcast, tables=default.empty_orders
 
-GROUP_BY(9)(c_custkey)
+GROUP_BY(11)(c_custkey)
   => exprs: (sum(default.empty_orders.o_orderkey (INT4)),max(default.empty_orders.o_orderstatus (TEXT)),max(default.empty_orders.o_orderdate (TEXT)))
   => target list: default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)
   => out schema:{(4) default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)}
@@ -77,14 +77,14 @@ Block Id: eb_0000000000000_0000_000004 [INTERMEDIATE]
 [Outgoing]
 [q_0000000000000_0000] 4 => 5 (type=RANGE_SHUFFLE, key=default.customer.c_custkey (INT4), num=32)
 
-SORT(11)
+SORT(13)
   => Sort Keys: default.customer.c_custkey (INT4) (asc)
    GROUP_BY(3)(c_custkey)
      => exprs: (sum(?sum_5 (INT8)),max(?max_6 (TEXT)),max(?max_7 (TEXT)))
      => target list: default.customer.c_custkey (INT4), ?sum (INT8), ?max_1 (TEXT), ?max_2 (TEXT)
      => out schema:{(4) ?max_1 (TEXT), ?max_2 (TEXT), ?sum (INT8), default.customer.c_custkey (INT4)}
      => in schema:{(4) default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)}
-      SCAN(10) on eb_0000000000000_0000_000003
+      SCAN(12) on eb_0000000000000_0000_000003
         => out schema: {(4) default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)}
         => in schema: {(4) default.customer.c_custkey (INT4), ?sum_5 (INT8), ?max_6 (TEXT), ?max_7 (TEXT)}
 
@@ -100,7 +100,7 @@ Block Id: eb_0000000000000_0000_000005 [ROOT]
 
 SORT(4)
   => Sort Keys: default.customer.c_custkey (INT4) (asc)
-   SCAN(12) on eb_0000000000000_0000_000004
+   SCAN(14) on eb_0000000000000_0000_000004
      => out schema: {(4) ?max_1 (TEXT), ?max_2 (TEXT), ?sum (INT8), default.customer.c_custkey (INT4)}
      => in schema: {(4) ?max_1 (TEXT), ?max_2 (TEXT), ?sum (INT8), default.customer.c_custkey (INT4)}