http://git-wip-us.apache.org/repos/asf/hive/blob/299926e1/ql/src/test/results/clientpositive/union19.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/union19.q.out 
b/ql/src/test/results/clientpositive/union19.q.out
index 8ff7913..5781ae5 100644
--- a/ql/src/test/results/clientpositive/union19.q.out
+++ b/ql/src/test/results/clientpositive/union19.q.out
@@ -63,7 +63,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -76,7 +76,7 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 501 Data size: 5484 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 501 Data size: 5584 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 aggregations: count(_col1)
                 keys: _col0 (type: string)
@@ -92,10 +92,10 @@ STAGE PLANS:
               Select Operator
                 expressions: _col0 (type: string), _col1 (type: string), _col1 
(type: string)
                 outputColumnNames: _col0, _col1, _col2
-                Statistics: Num rows: 501 Data size: 128256 Basic stats: 
COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 501 Data size: 228456 Basic stats: 
COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 501 Data size: 128256 Basic stats: 
COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 501 Data size: 228456 Basic stats: 
COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -109,7 +109,7 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 501 Data size: 5484 Basic stats: 
COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 501 Data size: 5584 Basic stats: 
COMPLETE Column stats: PARTIAL
                 Group By Operator
                   aggregations: count(_col1)
                   keys: _col0 (type: string)
@@ -125,10 +125,10 @@ STAGE PLANS:
                 Select Operator
                   expressions: _col0 (type: string), _col1 (type: string), 
_col1 (type: string)
                   outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 501 Data size: 128256 Basic stats: 
COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 501 Data size: 228456 Basic stats: 
COMPLETE Column stats: PARTIAL
                   File Output Operator
                     compressed: false
-                    Statistics: Num rows: 501 Data size: 128256 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 501 Data size: 228456 Basic stats: 
COMPLETE Column stats: PARTIAL
                     table:
                         input format: org.apache.hadoop.mapred.TextInputFormat
                         output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat

http://git-wip-us.apache.org/repos/asf/hive/blob/299926e1/ql/src/test/results/clientpositive/union20.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/union20.q.out 
b/ql/src/test/results/clientpositive/union20.q.out
index 8dc6a80..ae55a8b 100644
--- a/ql/src/test/results/clientpositive/union20.q.out
+++ b/ql/src/test/results/clientpositive/union20.q.out
@@ -53,7 +53,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -66,12 +66,12 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 167 Data size: 1935 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 167 Data size: 2035 Basic stats: COMPLETE 
Column stats: PARTIAL
               Reduce Output Operator
                 key expressions: _col0 (type: string)
                 sort order: +
                 Map-reduce partition columns: _col0 (type: string)
-                Statistics: Num rows: 167 Data size: 1935 Basic stats: 
COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 167 Data size: 2035 Basic stats: 
COMPLETE Column stats: PARTIAL
                 value expressions: _col1 (type: string)
           TableScan
             alias: s2
@@ -84,21 +84,21 @@ STAGE PLANS:
                 outputColumnNames: _col0, _col1
                 Statistics: Num rows: 166 Data size: 1763 Basic stats: 
COMPLETE Column stats: NONE
                 Union
-                  Statistics: Num rows: 167 Data size: 1935 Basic stats: 
COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 167 Data size: 2035 Basic stats: 
COMPLETE Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string)
                     sort order: +
                     Map-reduce partition columns: _col0 (type: string)
-                    Statistics: Num rows: 167 Data size: 1935 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 167 Data size: 2035 Basic stats: 
COMPLETE Column stats: PARTIAL
                     value expressions: _col1 (type: string)
           TableScan
             Union
-              Statistics: Num rows: 167 Data size: 1935 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 167 Data size: 2035 Basic stats: COMPLETE 
Column stats: PARTIAL
               Reduce Output Operator
                 key expressions: _col0 (type: string)
                 sort order: +
                 Map-reduce partition columns: _col0 (type: string)
-                Statistics: Num rows: 167 Data size: 1935 Basic stats: 
COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 167 Data size: 2035 Basic stats: 
COMPLETE Column stats: PARTIAL
                 value expressions: _col1 (type: string)
           TableScan
             alias: s4
@@ -111,12 +111,12 @@ STAGE PLANS:
                 outputColumnNames: _col0, _col1
                 Statistics: Num rows: 166 Data size: 1763 Basic stats: 
COMPLETE Column stats: NONE
                 Union
-                  Statistics: Num rows: 167 Data size: 1935 Basic stats: 
COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 167 Data size: 2035 Basic stats: 
COMPLETE Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string)
                     sort order: +
                     Map-reduce partition columns: _col0 (type: string)
-                    Statistics: Num rows: 167 Data size: 1935 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 167 Data size: 2035 Basic stats: 
COMPLETE Column stats: PARTIAL
                     value expressions: _col1 (type: string)
       Reduce Operator Tree:
         Join Operator
@@ -126,10 +126,10 @@ STAGE PLANS:
             0 _col0 (type: string)
             1 _col0 (type: string)
           outputColumnNames: _col0, _col1, _col2, _col3
-          Statistics: Num rows: 27889 Data size: 9593816 Basic stats: COMPLETE 
Column stats: PARTIAL
+          Statistics: Num rows: 27889 Data size: 15171616 Basic stats: 
COMPLETE Column stats: PARTIAL
           File Output Operator
             compressed: false
-            Statistics: Num rows: 27889 Data size: 9593816 Basic stats: 
COMPLETE Column stats: PARTIAL
+            Statistics: Num rows: 27889 Data size: 15171616 Basic stats: 
COMPLETE Column stats: PARTIAL
             table:
                 input format: org.apache.hadoop.mapred.SequenceFileInputFormat
                 output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -161,7 +161,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:

http://git-wip-us.apache.org/repos/asf/hive/blob/299926e1/ql/src/test/results/clientpositive/union6.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/union6.q.out 
b/ql/src/test/results/clientpositive/union6.q.out
index 531550e..8448d86 100644
--- a/ql/src/test/results/clientpositive/union6.q.out
+++ b/ql/src/test/results/clientpositive/union6.q.out
@@ -56,7 +56,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -69,10 +69,10 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
               File Output Operator
                 compressed: false
-                Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
                 table:
                     input format: org.apache.hadoop.mapred.TextInputFormat
                     output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -86,10 +86,10 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 26 Data size: 363 Basic stats: 
COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 26 Data size: 463 Basic stats: 
COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat

http://git-wip-us.apache.org/repos/asf/hive/blob/299926e1/ql/src/test/results/clientpositive/unionDistinct_1.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/unionDistinct_1.q.out 
b/ql/src/test/results/clientpositive/unionDistinct_1.q.out
index 9200ba3..81b565a 100644
--- a/ql/src/test/results/clientpositive/unionDistinct_1.q.out
+++ b/ql/src/test/results/clientpositive/unionDistinct_1.q.out
@@ -1224,7 +1224,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -1243,40 +1243,40 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: COMPLETE
+                Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: COMPLETE
                 Group By Operator
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: string)
                     sort order: ++
                     Map-reduce partition columns: _col0 (type: string)
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: COMPLETE
           TableScan
             Union
-              Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: COMPLETE
+              Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: COMPLETE
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: COMPLETE
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: COMPLETE
           Select Operator
             expressions: _col0 (type: string)
             outputColumnNames: _col0
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             Group By Operator
               aggregations: count(1)
               keys: _col0 (type: string)
@@ -1377,7 +1377,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -1390,17 +1390,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s2
             Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
@@ -1409,23 +1409,23 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Group By Operator
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: string)
                     sort order: ++
                     Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           File Output Operator
             compressed: false
             table:
@@ -1438,17 +1438,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s3
             Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
@@ -1457,27 +1457,27 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Group By Operator
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: string)
                     sort order: ++
                     Map-reduce partition columns: _col0 (type: string)
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           Select Operator
             expressions: _col0 (type: string)
             outputColumnNames: _col0
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
             Group By Operator
               aggregations: count(1)
               keys: _col0 (type: string)
@@ -2952,7 +2952,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -2965,17 +2965,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 501 Data size: 5484 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 501 Data size: 5584 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string), 
substr(_col1, 5) (type: string)
                   sort order: +++
                   Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s2
             Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
@@ -2984,23 +2984,23 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 501 Data size: 5484 Basic stats: 
COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 501 Data size: 5584 Basic stats: 
COMPLETE Column stats: PARTIAL
                 Group By Operator
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: 
string), substr(_col1, 5) (type: string)
                     sort order: +++
                     Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           Group By Operator
             aggregations: count(DISTINCT substr(_col1, 5))
             keys: _col0 (type: string), substr(_col1, 5) (type: string)
@@ -3018,14 +3018,14 @@ STAGE PLANS:
             keys: _col0 (type: string), _col1 (type: string)
             mode: complete
             outputColumnNames: _col0, _col1, _col2
-            Statistics: Num rows: 1 Data size: 364 Basic stats: COMPLETE 
Column stats: PARTIAL
+            Statistics: Num rows: 1 Data size: 464 Basic stats: COMPLETE 
Column stats: PARTIAL
             Select Operator
               expressions: _col0 (type: string), _col1 (type: string), _col2 
(type: bigint)
               outputColumnNames: _col0, _col1, _col2
-              Statistics: Num rows: 1 Data size: 356 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 1 Data size: 456 Basic stats: COMPLETE 
Column stats: PARTIAL
               File Output Operator
                 compressed: false
-                Statistics: Num rows: 1 Data size: 356 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 456 Basic stats: COMPLETE 
Column stats: PARTIAL
                 table:
                     input format: org.apache.hadoop.mapred.TextInputFormat
                     output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -3807,7 +3807,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -3820,17 +3820,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 501 Data size: 5484 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 501 Data size: 5584 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s2
             Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
@@ -3839,26 +3839,26 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 501 Data size: 5484 Basic stats: 
COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 501 Data size: 5584 Basic stats: 
COMPLETE Column stats: PARTIAL
                 Group By Operator
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: string)
                     sort order: ++
                     Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           File Output Operator
             compressed: false
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
             table:
                 input format: org.apache.hadoop.mapred.TextInputFormat
                 output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -3867,10 +3867,10 @@ STAGE PLANS:
           Select Operator
             expressions: _col0 (type: string), _col1 (type: string), _col1 
(type: string)
             outputColumnNames: _col0, _col1, _col2
-            Statistics: Num rows: 1 Data size: 256 Basic stats: COMPLETE 
Column stats: PARTIAL
+            Statistics: Num rows: 1 Data size: 456 Basic stats: COMPLETE 
Column stats: PARTIAL
             File Output Operator
               compressed: false
-              Statistics: Num rows: 1 Data size: 256 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 1 Data size: 456 Basic stats: COMPLETE 
Column stats: PARTIAL
               table:
                   input format: org.apache.hadoop.mapred.TextInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -4627,7 +4627,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -4640,17 +4640,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 501 Data size: 5484 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 501 Data size: 5584 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s2
             Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
@@ -4659,23 +4659,23 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 501 Data size: 5484 Basic stats: 
COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 501 Data size: 5584 Basic stats: 
COMPLETE Column stats: PARTIAL
                 Group By Operator
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: string)
                     sort order: ++
                     Map-reduce partition columns: _col0 (type: string)
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           Group By Operator
             aggregations: count(_col1)
             keys: _col0 (type: string)
@@ -4693,10 +4693,10 @@ STAGE PLANS:
           Select Operator
             expressions: _col0 (type: string), _col1 (type: string), _col1 
(type: string)
             outputColumnNames: _col0, _col1, _col2
-            Statistics: Num rows: 1 Data size: 256 Basic stats: COMPLETE 
Column stats: PARTIAL
+            Statistics: Num rows: 1 Data size: 456 Basic stats: COMPLETE 
Column stats: PARTIAL
             File Output Operator
               compressed: false
-              Statistics: Num rows: 1 Data size: 256 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 1 Data size: 456 Basic stats: COMPLETE 
Column stats: PARTIAL
               table:
                   input format: org.apache.hadoop.mapred.TextInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -5559,7 +5559,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -5572,17 +5572,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 167 Data size: 1935 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 167 Data size: 2035 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s2
             Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
@@ -5594,23 +5594,23 @@ STAGE PLANS:
                 outputColumnNames: _col0, _col1
                 Statistics: Num rows: 166 Data size: 1763 Basic stats: 
COMPLETE Column stats: NONE
                 Union
-                  Statistics: Num rows: 167 Data size: 1935 Basic stats: 
COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 167 Data size: 2035 Basic stats: 
COMPLETE Column stats: PARTIAL
                   Group By Operator
                     keys: _col0 (type: string), _col1 (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
                     Reduce Output Operator
                       key expressions: _col0 (type: string), _col1 (type: 
string)
                       sort order: ++
                       Map-reduce partition columns: _col0 (type: string), 
_col1 (type: string)
-                      Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                      Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           File Output Operator
             compressed: false
             table:
@@ -5626,14 +5626,14 @@ STAGE PLANS:
               key expressions: _col0 (type: string)
               sort order: +
               Map-reduce partition columns: _col0 (type: string)
-              Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
               value expressions: _col1 (type: string)
           TableScan
             Reduce Output Operator
               key expressions: _col0 (type: string)
               sort order: +
               Map-reduce partition columns: _col0 (type: string)
-              Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
               value expressions: _col1 (type: string)
       Reduce Operator Tree:
         Join Operator
@@ -5643,10 +5643,10 @@ STAGE PLANS:
             0 _col0 (type: string)
             1 _col0 (type: string)
           outputColumnNames: _col0, _col1, _col2, _col3
-          Statistics: Num rows: 1 Data size: 344 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 544 Basic stats: COMPLETE Column 
stats: PARTIAL
           File Output Operator
             compressed: false
-            Statistics: Num rows: 1 Data size: 344 Basic stats: COMPLETE 
Column stats: PARTIAL
+            Statistics: Num rows: 1 Data size: 544 Basic stats: COMPLETE 
Column stats: PARTIAL
             table:
                 input format: org.apache.hadoop.mapred.SequenceFileInputFormat
                 output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -5678,7 +5678,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -5691,17 +5691,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 167 Data size: 1935 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 167 Data size: 2035 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s4
             Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE 
Column stats: NONE
@@ -5713,23 +5713,23 @@ STAGE PLANS:
                 outputColumnNames: _col0, _col1
                 Statistics: Num rows: 166 Data size: 1763 Basic stats: 
COMPLETE Column stats: NONE
                 Union
-                  Statistics: Num rows: 167 Data size: 1935 Basic stats: 
COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 167 Data size: 2035 Basic stats: 
COMPLETE Column stats: PARTIAL
                   Group By Operator
                     keys: _col0 (type: string), _col1 (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
                     Reduce Output Operator
                       key expressions: _col0 (type: string), _col1 (type: 
string)
                       sort order: ++
                       Map-reduce partition columns: _col0 (type: string), 
_col1 (type: string)
-                      Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                      Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           File Output Operator
             compressed: false
             table:
@@ -15445,7 +15445,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -15458,17 +15458,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s2
             Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
@@ -15477,26 +15477,26 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Group By Operator
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: string)
                     sort order: ++
                     Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           File Output Operator
             compressed: false
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
             table:
                 input format: org.apache.hadoop.mapred.TextInputFormat
                 output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -15607,7 +15607,7 @@ STAGE PLANS:
           Select Operator
             expressions: 'tst1' (type: string), UDFToString(_col0) (type: 
string)
             outputColumnNames: _col0, _col1
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: COMPLETE
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: COMPLETE
             File Output Operator
               compressed: false
               table:
@@ -15620,17 +15620,17 @@ STAGE PLANS:
       Map Operator Tree:
           TableScan
             Union
-              Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+              Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
               Group By Operator
                 keys: _col0 (type: string), _col1 (type: string)
                 mode: hash
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Reduce Output Operator
                   key expressions: _col0 (type: string), _col1 (type: string)
                   sort order: ++
                   Map-reduce partition columns: _col0 (type: string)
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
           TableScan
             alias: s2
             Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
@@ -15639,27 +15639,27 @@ STAGE PLANS:
               outputColumnNames: _col0, _col1
               Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE 
Column stats: NONE
               Union
-                Statistics: Num rows: 26 Data size: 363 Basic stats: COMPLETE 
Column stats: PARTIAL
+                Statistics: Num rows: 26 Data size: 463 Basic stats: COMPLETE 
Column stats: PARTIAL
                 Group By Operator
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: string)
                     sort order: ++
                     Map-reduce partition columns: _col0 (type: string)
-                    Statistics: Num rows: 1 Data size: 172 Basic stats: 
COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: 
COMPLETE Column stats: PARTIAL
       Reduce Operator Tree:
         Group By Operator
           keys: KEY._col0 (type: string), KEY._col1 (type: string)
           mode: mergepartial
           outputColumnNames: _col0, _col1
-          Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE Column 
stats: PARTIAL
+          Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column 
stats: PARTIAL
           Select Operator
             expressions: _col0 (type: string)
             outputColumnNames: _col0
-            Statistics: Num rows: 1 Data size: 172 Basic stats: COMPLETE 
Column stats: PARTIAL
+            Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE 
Column stats: PARTIAL
             Group By Operator
               aggregations: count(1)
               keys: _col0 (type: string)

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