[03/17] tajo git commit: TAJO-1352: Improve the join order algorithm to consider missed cases of associative join operators. (jihoon)

jihoonson Sun, 19 Jul 2015 20:32:00 -0700

http://git-wip-us.apache.org/repos/asf/tajo/blob/bedce3aa/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash.plan
----------------------------------------------------------------------
diff --git 
a/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash.plan
 
b/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash.plan
index 41aa108..795c011 100644
--- 
a/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash.plan
+++ 
b/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash.plan
@@ -5,15 +5,6 @@ JOIN(11)(FULL_OUTER)
   => target list: default.a.l_orderkey (INT4)
   => out schema: {(1) default.a.l_orderkey (INT4)}
   => in schema: {(2) default.a.l_orderkey (INT4), default.b.l_orderkey (INT4)}
-   TABLE_SUBQUERY(7) as default.b
-     => Targets: default.b.l_orderkey (INT4)
-     => out schema: {(1) default.b.l_orderkey (INT4)}
-     => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
-      SCAN(4) on default.lineitem
-        => filter: default.lineitem.l_orderkey (INT4) < 0
-        => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
-        => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-        => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
    TABLE_SUBQUERY(3) as default.a
      => Targets: default.a.l_orderkey (INT4)
      => out schema: {(1) default.a.l_orderkey (INT4)}
@@ -23,6 +14,15 @@ JOIN(11)(FULL_OUTER)
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
         => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
+   TABLE_SUBQUERY(7) as default.b
+     => Targets: default.b.l_orderkey (INT4)
+     => out schema: {(1) default.b.l_orderkey (INT4)}
+     => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
+      SCAN(4) on default.lineitem
+        => filter: default.lineitem.l_orderkey (INT4) < 0
+        => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
+        => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
+        => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
 explain
 -------------------------------
 -------------------------------------------------------------------------------
@@ -46,17 +46,17 @@ Block Id: eb_0000000000000_0000_000001 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
 
-TABLE_SUBQUERY(3) as default.a
-  => Targets: default.a.l_orderkey (INT4)
-  => out schema: {(1) default.a.l_orderkey (INT4)}
-  => 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)}
-   PROJECTION(2)
+TABLE_SUBQUERY(7) as default.b
+  => Targets: default.b.l_orderkey (INT4)
+  => out schema: {(1) default.b.l_orderkey (INT4)}
+  => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
+   PROJECTION(6)
      => Targets: default.lineitem.l_orderkey (INT4), 
default.lineitem.l_partkey (INT4), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_linenumber (INT4), default.lineitem.l_quantity (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_discount 
(FLOAT8), default.lineitem.l_tax (FLOAT8), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_linestatus (TEXT), default.lineitem.l_shipdate 
(TEXT), default.lineitem.l_commitdate (TEXT), default.lineitem.l_receiptdate 
(TEXT), default.lineitem.l_shipinstruct (TEXT), default.lineitem.l_shipmode 
(TEXT), default.lineitem.l_comment (TEXT)
      => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
      => in  schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-      SCAN(0) on default.lineitem
+      SCAN(4) on default.lineitem
         => filter: default.lineitem.l_orderkey (INT4) < 0
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
@@ -67,17 +67,17 @@ Block Id: eb_0000000000000_0000_000002 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
 
-TABLE_SUBQUERY(7) as default.b
-  => Targets: default.b.l_orderkey (INT4)
-  => out schema: {(1) default.b.l_orderkey (INT4)}
-  => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
-   PROJECTION(6)
+TABLE_SUBQUERY(3) as default.a
+  => Targets: default.a.l_orderkey (INT4)
+  => out schema: {(1) default.a.l_orderkey (INT4)}
+  => 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)}
+   PROJECTION(2)
      => Targets: default.lineitem.l_orderkey (INT4), 
default.lineitem.l_partkey (INT4), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_linenumber (INT4), default.lineitem.l_quantity (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_discount 
(FLOAT8), default.lineitem.l_tax (FLOAT8), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_linestatus (TEXT), default.lineitem.l_shipdate 
(TEXT), default.lineitem.l_commitdate (TEXT), default.lineitem.l_receiptdate 
(TEXT), default.lineitem.l_shipinstruct (TEXT), default.lineitem.l_shipmode 
(TEXT), default.lineitem.l_comment (TEXT)
      => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
      => in  schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-      SCAN(4) on default.lineitem
+      SCAN(0) on default.lineitem
         => filter: default.lineitem.l_orderkey (INT4) < 0
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
@@ -88,8 +88,8 @@ Block Id: eb_0000000000000_0000_000003 [ROOT]
 =======================================================
 
 [Incoming]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
 
 JOIN(11)(FULL_OUTER)
   => Join Cond: default.a.l_orderkey (INT4) = default.b.l_orderkey (INT4)
@@ -97,11 +97,11 @@ JOIN(11)(FULL_OUTER)
   => out schema: {(1) default.a.l_orderkey (INT4)}
   => in schema: {(2) default.a.l_orderkey (INT4), default.b.l_orderkey (INT4)}
    SCAN(14) on eb_0000000000000_0000_000002
-     => out schema: {(1) default.b.l_orderkey (INT4)}
-     => in schema: {(1) default.b.l_orderkey (INT4)}
-   SCAN(13) on eb_0000000000000_0000_000001
      => out schema: {(1) default.a.l_orderkey (INT4)}
      => in schema: {(1) default.a.l_orderkey (INT4)}
+   SCAN(13) on eb_0000000000000_0000_000001
+     => out schema: {(1) default.b.l_orderkey (INT4)}
+     => in schema: {(1) default.b.l_orderkey (INT4)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000004 [TERMINAL]


http://git-wip-us.apache.org/repos/asf/tajo/blob/bedce3aa/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash_NoBroadcast.plan
----------------------------------------------------------------------
diff --git 
a/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash_NoBroadcast.plan
 
b/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash_NoBroadcast.plan
index 41aa108..795c011 100644
--- 
a/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash_NoBroadcast.plan
+++ 
b/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Hash_NoBroadcast.plan
@@ -5,15 +5,6 @@ JOIN(11)(FULL_OUTER)
   => target list: default.a.l_orderkey (INT4)
   => out schema: {(1) default.a.l_orderkey (INT4)}
   => in schema: {(2) default.a.l_orderkey (INT4), default.b.l_orderkey (INT4)}
-   TABLE_SUBQUERY(7) as default.b
-     => Targets: default.b.l_orderkey (INT4)
-     => out schema: {(1) default.b.l_orderkey (INT4)}
-     => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
-      SCAN(4) on default.lineitem
-        => filter: default.lineitem.l_orderkey (INT4) < 0
-        => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
-        => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-        => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
    TABLE_SUBQUERY(3) as default.a
      => Targets: default.a.l_orderkey (INT4)
      => out schema: {(1) default.a.l_orderkey (INT4)}
@@ -23,6 +14,15 @@ JOIN(11)(FULL_OUTER)
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
         => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
+   TABLE_SUBQUERY(7) as default.b
+     => Targets: default.b.l_orderkey (INT4)
+     => out schema: {(1) default.b.l_orderkey (INT4)}
+     => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
+      SCAN(4) on default.lineitem
+        => filter: default.lineitem.l_orderkey (INT4) < 0
+        => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
+        => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
+        => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
 explain
 -------------------------------
 -------------------------------------------------------------------------------
@@ -46,17 +46,17 @@ Block Id: eb_0000000000000_0000_000001 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
 
-TABLE_SUBQUERY(3) as default.a
-  => Targets: default.a.l_orderkey (INT4)
-  => out schema: {(1) default.a.l_orderkey (INT4)}
-  => 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)}
-   PROJECTION(2)
+TABLE_SUBQUERY(7) as default.b
+  => Targets: default.b.l_orderkey (INT4)
+  => out schema: {(1) default.b.l_orderkey (INT4)}
+  => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
+   PROJECTION(6)
      => Targets: default.lineitem.l_orderkey (INT4), 
default.lineitem.l_partkey (INT4), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_linenumber (INT4), default.lineitem.l_quantity (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_discount 
(FLOAT8), default.lineitem.l_tax (FLOAT8), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_linestatus (TEXT), default.lineitem.l_shipdate 
(TEXT), default.lineitem.l_commitdate (TEXT), default.lineitem.l_receiptdate 
(TEXT), default.lineitem.l_shipinstruct (TEXT), default.lineitem.l_shipmode 
(TEXT), default.lineitem.l_comment (TEXT)
      => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
      => in  schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-      SCAN(0) on default.lineitem
+      SCAN(4) on default.lineitem
         => filter: default.lineitem.l_orderkey (INT4) < 0
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
@@ -67,17 +67,17 @@ Block Id: eb_0000000000000_0000_000002 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
 
-TABLE_SUBQUERY(7) as default.b
-  => Targets: default.b.l_orderkey (INT4)
-  => out schema: {(1) default.b.l_orderkey (INT4)}
-  => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
-   PROJECTION(6)
+TABLE_SUBQUERY(3) as default.a
+  => Targets: default.a.l_orderkey (INT4)
+  => out schema: {(1) default.a.l_orderkey (INT4)}
+  => 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)}
+   PROJECTION(2)
      => Targets: default.lineitem.l_orderkey (INT4), 
default.lineitem.l_partkey (INT4), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_linenumber (INT4), default.lineitem.l_quantity (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_discount 
(FLOAT8), default.lineitem.l_tax (FLOAT8), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_linestatus (TEXT), default.lineitem.l_shipdate 
(TEXT), default.lineitem.l_commitdate (TEXT), default.lineitem.l_receiptdate 
(TEXT), default.lineitem.l_shipinstruct (TEXT), default.lineitem.l_shipmode 
(TEXT), default.lineitem.l_comment (TEXT)
      => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
      => in  schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-      SCAN(4) on default.lineitem
+      SCAN(0) on default.lineitem
         => filter: default.lineitem.l_orderkey (INT4) < 0
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
@@ -88,8 +88,8 @@ Block Id: eb_0000000000000_0000_000003 [ROOT]
 =======================================================
 
 [Incoming]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
 
 JOIN(11)(FULL_OUTER)
   => Join Cond: default.a.l_orderkey (INT4) = default.b.l_orderkey (INT4)
@@ -97,11 +97,11 @@ JOIN(11)(FULL_OUTER)
   => out schema: {(1) default.a.l_orderkey (INT4)}
   => in schema: {(2) default.a.l_orderkey (INT4), default.b.l_orderkey (INT4)}
    SCAN(14) on eb_0000000000000_0000_000002
-     => out schema: {(1) default.b.l_orderkey (INT4)}
-     => in schema: {(1) default.b.l_orderkey (INT4)}
-   SCAN(13) on eb_0000000000000_0000_000001
      => out schema: {(1) default.a.l_orderkey (INT4)}
      => in schema: {(1) default.a.l_orderkey (INT4)}
+   SCAN(13) on eb_0000000000000_0000_000001
+     => out schema: {(1) default.b.l_orderkey (INT4)}
+     => in schema: {(1) default.b.l_orderkey (INT4)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000004 [TERMINAL]

http://git-wip-us.apache.org/repos/asf/tajo/blob/bedce3aa/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort.plan
----------------------------------------------------------------------
diff --git 
a/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort.plan
 
b/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort.plan
index 41aa108..795c011 100644
--- 
a/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort.plan
+++ 
b/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort.plan
@@ -5,15 +5,6 @@ JOIN(11)(FULL_OUTER)
   => target list: default.a.l_orderkey (INT4)
   => out schema: {(1) default.a.l_orderkey (INT4)}
   => in schema: {(2) default.a.l_orderkey (INT4), default.b.l_orderkey (INT4)}
-   TABLE_SUBQUERY(7) as default.b
-     => Targets: default.b.l_orderkey (INT4)
-     => out schema: {(1) default.b.l_orderkey (INT4)}
-     => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
-      SCAN(4) on default.lineitem
-        => filter: default.lineitem.l_orderkey (INT4) < 0
-        => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
-        => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-        => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
    TABLE_SUBQUERY(3) as default.a
      => Targets: default.a.l_orderkey (INT4)
      => out schema: {(1) default.a.l_orderkey (INT4)}
@@ -23,6 +14,15 @@ JOIN(11)(FULL_OUTER)
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
         => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
+   TABLE_SUBQUERY(7) as default.b
+     => Targets: default.b.l_orderkey (INT4)
+     => out schema: {(1) default.b.l_orderkey (INT4)}
+     => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
+      SCAN(4) on default.lineitem
+        => filter: default.lineitem.l_orderkey (INT4) < 0
+        => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
+        => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
+        => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
 explain
 -------------------------------
 -------------------------------------------------------------------------------
@@ -46,17 +46,17 @@ Block Id: eb_0000000000000_0000_000001 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
 
-TABLE_SUBQUERY(3) as default.a
-  => Targets: default.a.l_orderkey (INT4)
-  => out schema: {(1) default.a.l_orderkey (INT4)}
-  => 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)}
-   PROJECTION(2)
+TABLE_SUBQUERY(7) as default.b
+  => Targets: default.b.l_orderkey (INT4)
+  => out schema: {(1) default.b.l_orderkey (INT4)}
+  => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
+   PROJECTION(6)
      => Targets: default.lineitem.l_orderkey (INT4), 
default.lineitem.l_partkey (INT4), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_linenumber (INT4), default.lineitem.l_quantity (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_discount 
(FLOAT8), default.lineitem.l_tax (FLOAT8), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_linestatus (TEXT), default.lineitem.l_shipdate 
(TEXT), default.lineitem.l_commitdate (TEXT), default.lineitem.l_receiptdate 
(TEXT), default.lineitem.l_shipinstruct (TEXT), default.lineitem.l_shipmode 
(TEXT), default.lineitem.l_comment (TEXT)
      => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
      => in  schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-      SCAN(0) on default.lineitem
+      SCAN(4) on default.lineitem
         => filter: default.lineitem.l_orderkey (INT4) < 0
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
@@ -67,17 +67,17 @@ Block Id: eb_0000000000000_0000_000002 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
 
-TABLE_SUBQUERY(7) as default.b
-  => Targets: default.b.l_orderkey (INT4)
-  => out schema: {(1) default.b.l_orderkey (INT4)}
-  => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
-   PROJECTION(6)
+TABLE_SUBQUERY(3) as default.a
+  => Targets: default.a.l_orderkey (INT4)
+  => out schema: {(1) default.a.l_orderkey (INT4)}
+  => 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)}
+   PROJECTION(2)
      => Targets: default.lineitem.l_orderkey (INT4), 
default.lineitem.l_partkey (INT4), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_linenumber (INT4), default.lineitem.l_quantity (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_discount 
(FLOAT8), default.lineitem.l_tax (FLOAT8), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_linestatus (TEXT), default.lineitem.l_shipdate 
(TEXT), default.lineitem.l_commitdate (TEXT), default.lineitem.l_receiptdate 
(TEXT), default.lineitem.l_shipinstruct (TEXT), default.lineitem.l_shipmode 
(TEXT), default.lineitem.l_comment (TEXT)
      => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
      => in  schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-      SCAN(4) on default.lineitem
+      SCAN(0) on default.lineitem
         => filter: default.lineitem.l_orderkey (INT4) < 0
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
@@ -88,8 +88,8 @@ Block Id: eb_0000000000000_0000_000003 [ROOT]
 =======================================================
 
 [Incoming]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
 
 JOIN(11)(FULL_OUTER)
   => Join Cond: default.a.l_orderkey (INT4) = default.b.l_orderkey (INT4)
@@ -97,11 +97,11 @@ JOIN(11)(FULL_OUTER)
   => out schema: {(1) default.a.l_orderkey (INT4)}
   => in schema: {(2) default.a.l_orderkey (INT4), default.b.l_orderkey (INT4)}
    SCAN(14) on eb_0000000000000_0000_000002
-     => out schema: {(1) default.b.l_orderkey (INT4)}
-     => in schema: {(1) default.b.l_orderkey (INT4)}
-   SCAN(13) on eb_0000000000000_0000_000001
      => out schema: {(1) default.a.l_orderkey (INT4)}
      => in schema: {(1) default.a.l_orderkey (INT4)}
+   SCAN(13) on eb_0000000000000_0000_000001
+     => out schema: {(1) default.b.l_orderkey (INT4)}
+     => in schema: {(1) default.b.l_orderkey (INT4)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000004 [TERMINAL]

http://git-wip-us.apache.org/repos/asf/tajo/blob/bedce3aa/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort_NoBroadcast.plan
----------------------------------------------------------------------
diff --git 
a/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort_NoBroadcast.plan
 
b/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort_NoBroadcast.plan
index 41aa108..795c011 100644
--- 
a/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort_NoBroadcast.plan
+++ 
b/tajo-core/src/test/resources/results/TestOuterJoinWithSubQuery/testFullOuterJoinWithEmptyIntermediateData.1.Sort_NoBroadcast.plan
@@ -5,15 +5,6 @@ JOIN(11)(FULL_OUTER)
   => target list: default.a.l_orderkey (INT4)
   => out schema: {(1) default.a.l_orderkey (INT4)}
   => in schema: {(2) default.a.l_orderkey (INT4), default.b.l_orderkey (INT4)}
-   TABLE_SUBQUERY(7) as default.b
-     => Targets: default.b.l_orderkey (INT4)
-     => out schema: {(1) default.b.l_orderkey (INT4)}
-     => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
-      SCAN(4) on default.lineitem
-        => filter: default.lineitem.l_orderkey (INT4) < 0
-        => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
-        => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-        => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
    TABLE_SUBQUERY(3) as default.a
      => Targets: default.a.l_orderkey (INT4)
      => out schema: {(1) default.a.l_orderkey (INT4)}
@@ -23,6 +14,15 @@ JOIN(11)(FULL_OUTER)
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
         => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
+   TABLE_SUBQUERY(7) as default.b
+     => Targets: default.b.l_orderkey (INT4)
+     => out schema: {(1) default.b.l_orderkey (INT4)}
+     => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
+      SCAN(4) on default.lineitem
+        => filter: default.lineitem.l_orderkey (INT4) < 0
+        => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
+        => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
+        => in schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
 explain
 -------------------------------
 -------------------------------------------------------------------------------
@@ -46,17 +46,17 @@ Block Id: eb_0000000000000_0000_000001 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
 
-TABLE_SUBQUERY(3) as default.a
-  => Targets: default.a.l_orderkey (INT4)
-  => out schema: {(1) default.a.l_orderkey (INT4)}
-  => 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)}
-   PROJECTION(2)
+TABLE_SUBQUERY(7) as default.b
+  => Targets: default.b.l_orderkey (INT4)
+  => out schema: {(1) default.b.l_orderkey (INT4)}
+  => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
+   PROJECTION(6)
      => Targets: default.lineitem.l_orderkey (INT4), 
default.lineitem.l_partkey (INT4), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_linenumber (INT4), default.lineitem.l_quantity (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_discount 
(FLOAT8), default.lineitem.l_tax (FLOAT8), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_linestatus (TEXT), default.lineitem.l_shipdate 
(TEXT), default.lineitem.l_commitdate (TEXT), default.lineitem.l_receiptdate 
(TEXT), default.lineitem.l_shipinstruct (TEXT), default.lineitem.l_shipmode 
(TEXT), default.lineitem.l_comment (TEXT)
      => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
      => in  schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-      SCAN(0) on default.lineitem
+      SCAN(4) on default.lineitem
         => filter: default.lineitem.l_orderkey (INT4) < 0
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
@@ -67,17 +67,17 @@ Block Id: eb_0000000000000_0000_000002 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
 
-TABLE_SUBQUERY(7) as default.b
-  => Targets: default.b.l_orderkey (INT4)
-  => out schema: {(1) default.b.l_orderkey (INT4)}
-  => in  schema: {(16) default.b.l_comment (TEXT), default.b.l_commitdate 
(TEXT), default.b.l_discount (FLOAT8), default.b.l_extendedprice (FLOAT8), 
default.b.l_linenumber (INT4), default.b.l_linestatus (TEXT), 
default.b.l_orderkey (INT4), default.b.l_partkey (INT4), default.b.l_quantity 
(FLOAT8), default.b.l_receiptdate (TEXT), default.b.l_returnflag (TEXT), 
default.b.l_shipdate (TEXT), default.b.l_shipinstruct (TEXT), 
default.b.l_shipmode (TEXT), default.b.l_suppkey (INT4), default.b.l_tax 
(FLOAT8)}
-   PROJECTION(6)
+TABLE_SUBQUERY(3) as default.a
+  => Targets: default.a.l_orderkey (INT4)
+  => out schema: {(1) default.a.l_orderkey (INT4)}
+  => 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)}
+   PROJECTION(2)
      => Targets: default.lineitem.l_orderkey (INT4), 
default.lineitem.l_partkey (INT4), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_linenumber (INT4), default.lineitem.l_quantity (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_discount 
(FLOAT8), default.lineitem.l_tax (FLOAT8), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_linestatus (TEXT), default.lineitem.l_shipdate 
(TEXT), default.lineitem.l_commitdate (TEXT), default.lineitem.l_receiptdate 
(TEXT), default.lineitem.l_shipinstruct (TEXT), default.lineitem.l_shipmode 
(TEXT), default.lineitem.l_comment (TEXT)
      => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
      => in  schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
-      SCAN(4) on default.lineitem
+      SCAN(0) on default.lineitem
         => filter: default.lineitem.l_orderkey (INT4) < 0
         => target list: default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)
         => out schema: {(16) default.lineitem.l_comment (TEXT), 
default.lineitem.l_commitdate (TEXT), default.lineitem.l_discount (FLOAT8), 
default.lineitem.l_extendedprice (FLOAT8), default.lineitem.l_linenumber 
(INT4), default.lineitem.l_linestatus (TEXT), default.lineitem.l_orderkey 
(INT4), default.lineitem.l_partkey (INT4), default.lineitem.l_quantity 
(FLOAT8), default.lineitem.l_receiptdate (TEXT), default.lineitem.l_returnflag 
(TEXT), default.lineitem.l_shipdate (TEXT), default.lineitem.l_shipinstruct 
(TEXT), default.lineitem.l_shipmode (TEXT), default.lineitem.l_suppkey (INT4), 
default.lineitem.l_tax (FLOAT8)}
@@ -88,8 +88,8 @@ Block Id: eb_0000000000000_0000_000003 [ROOT]
 =======================================================
 
 [Incoming]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.b.l_orderkey 
(INT4), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.a.l_orderkey 
(INT4), num=32)
 
 JOIN(11)(FULL_OUTER)
   => Join Cond: default.a.l_orderkey (INT4) = default.b.l_orderkey (INT4)
@@ -97,11 +97,11 @@ JOIN(11)(FULL_OUTER)
   => out schema: {(1) default.a.l_orderkey (INT4)}
   => in schema: {(2) default.a.l_orderkey (INT4), default.b.l_orderkey (INT4)}
    SCAN(14) on eb_0000000000000_0000_000002
-     => out schema: {(1) default.b.l_orderkey (INT4)}
-     => in schema: {(1) default.b.l_orderkey (INT4)}
-   SCAN(13) on eb_0000000000000_0000_000001
      => out schema: {(1) default.a.l_orderkey (INT4)}
      => in schema: {(1) default.a.l_orderkey (INT4)}
+   SCAN(13) on eb_0000000000000_0000_000001
+     => out schema: {(1) default.b.l_orderkey (INT4)}
+     => in schema: {(1) default.b.l_orderkey (INT4)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000004 [TERMINAL]

http://git-wip-us.apache.org/repos/asf/tajo/blob/bedce3aa/tajo-core/src/test/resources/results/TestSelectQuery/testExplainSelectPhysical.2.result
----------------------------------------------------------------------
diff --git 
a/tajo-core/src/test/resources/results/TestSelectQuery/testExplainSelectPhysical.2.result
 
b/tajo-core/src/test/resources/results/TestSelectQuery/testExplainSelectPhysical.2.result
index c0f3067..6135220 100644
--- 
a/tajo-core/src/test/resources/results/TestSelectQuery/testExplainSelectPhysical.2.result
+++ 
b/tajo-core/src/test/resources/results/TestSelectQuery/testExplainSelectPhysical.2.result
@@ -23,32 +23,32 @@ Block Id: eb_0000000000000_0000_000001 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.n1.n_name 
(TEXT), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=?upper_1 (TEXT), num=32)
 
-SCAN(0) on default.nation as n1
-  => target list: default.n1.n_nationkey (INT4), default.n1.n_name (TEXT)
-  => out schema: {(2) default.n1.n_nationkey (INT4), default.n1.n_name (TEXT)}
-  => in schema: {(4) default.n1.n_nationkey (INT4), default.n1.n_name (TEXT), 
default.n1.n_regionkey (INT4), default.n1.n_comment (TEXT)}
+SCAN(1) on default.nation as n2
+  => target list: default.n2.n_name (TEXT), upper(default.n2.n_name (TEXT)) as 
?upper_1
+  => out schema: {(2) default.n2.n_name (TEXT), ?upper_1 (TEXT)}
+  => in schema: {(4) default.n2.n_nationkey (INT4), default.n2.n_name (TEXT), 
default.n2.n_regionkey (INT4), default.n2.n_comment (TEXT)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000002 [LEAF]
 =======================================================
 
 [Outgoing]
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=?upper_1 (TEXT), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.n1.n_name 
(TEXT), num=32)
 
-SCAN(1) on default.nation as n2
-  => target list: default.n2.n_name (TEXT), upper(default.n2.n_name (TEXT)) as 
?upper_1
-  => out schema: {(2) default.n2.n_name (TEXT), ?upper_1 (TEXT)}
-  => in schema: {(4) default.n2.n_nationkey (INT4), default.n2.n_name (TEXT), 
default.n2.n_regionkey (INT4), default.n2.n_comment (TEXT)}
+SCAN(0) on default.nation as n1
+  => target list: default.n1.n_nationkey (INT4), default.n1.n_name (TEXT)
+  => out schema: {(2) default.n1.n_nationkey (INT4), default.n1.n_name (TEXT)}
+  => in schema: {(4) default.n1.n_nationkey (INT4), default.n1.n_name (TEXT), 
default.n1.n_regionkey (INT4), default.n1.n_comment (TEXT)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000003 [INTERMEDIATE]
 =======================================================
 
 [Incoming]
-[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=default.n1.n_name 
(TEXT), num=32)
-[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=?upper_1 (TEXT), num=32)
+[q_0000000000000_0000] 1 => 3 (type=HASH_SHUFFLE, key=?upper_1 (TEXT), num=32)
+[q_0000000000000_0000] 2 => 3 (type=HASH_SHUFFLE, key=default.n1.n_name 
(TEXT), num=32)
 
 [Outgoing]
 [q_0000000000000_0000] 3 => 4 (type=RANGE_SHUFFLE, key=default.n1.n_nationkey 
(INT4), num=32)
@@ -59,13 +59,13 @@ SORT(10)
      => Join Cond: default.n1.n_name (TEXT) = ?upper_1 (TEXT)
      => target list: default.n1.n_nationkey (INT4), default.n1.n_name (TEXT), 
default.n2.n_name (TEXT)
      => out schema: {(3) default.n1.n_nationkey (INT4), default.n1.n_name 
(TEXT), default.n2.n_name (TEXT)}
-     => in schema: {(4) default.n1.n_nationkey (INT4), default.n1.n_name 
(TEXT), default.n2.n_name (TEXT), ?upper_1 (TEXT)}
+     => in schema: {(4) default.n2.n_name (TEXT), ?upper_1 (TEXT), 
default.n1.n_nationkey (INT4), default.n1.n_name (TEXT)}
       SCAN(9) on eb_0000000000000_0000_000002
-        => out schema: {(2) default.n2.n_name (TEXT), ?upper_1 (TEXT)}
-        => in schema: {(2) default.n2.n_name (TEXT), ?upper_1 (TEXT)}
-      SCAN(8) on eb_0000000000000_0000_000001
         => out schema: {(2) default.n1.n_nationkey (INT4), default.n1.n_name 
(TEXT)}
         => in schema: {(2) default.n1.n_nationkey (INT4), default.n1.n_name 
(TEXT)}
+      SCAN(8) on eb_0000000000000_0000_000001
+        => out schema: {(2) default.n2.n_name (TEXT), ?upper_1 (TEXT)}
+        => in schema: {(2) default.n2.n_name (TEXT), ?upper_1 (TEXT)}
 
 =======================================================
 Block Id: eb_0000000000000_0000_000004 [ROOT]

[03/17] tajo git commit: TAJO-1352: Improve the join order algorithm to consider missed cases of associative join operators. (jihoon)

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