rbalamohan opened a new pull request #1165:
URL: https://github.com/apache/hive/pull/1165


   HIVE-23735: Reducer misestimate for export command
   
   SemanticAnalyzer::genBucketingSortingDest checks for number of buckets for 
enforceBucketing and based on this number of reducers are determined. Patch 
adds one more check for bucketCols to ensure that only valid tables gets the 
reducer sink.
   


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