jcamachor commented on a change in pull request #819: HIVE-22363 
ReduceDeduplication may leave an invalid GroupByOperator behind in some cases
URL: https://github.com/apache/hive/pull/819#discussion_r337300331
 
 

 ##########
 File path: ql/src/test/results/clientpositive/autoColumnStats_7.q.out
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 @@ -48,7 +48,7 @@ STAGE PLANS:
               Reduce Output Operator
                 key expressions: _col0 (type: string), _col1 (type: string)
                 sort order: ++
-                Map-reduce partition columns: _col0 (type: string)
+                Map-reduce partition columns: _col0 (type: string), _col1 
(type: string)
 
 Review comment:
   Why do we partition by two keys now? We are only grouping by one key so this 
may be incorrect?

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