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Chengxiang Li commented on HIVE-7640: ------------------------------------- Mainly table sampling features are workable except 2 issues: # part of block sampling requires CombineHiveInputFormat, while Hive on Spark hard code input format to HiveInputFormat. # few block sampling queries return unexpected result. I've create 2 related jira which are linked above to track these 2 issues. > Support Hive TABLESAMPLE > ------------------------ > > Key: HIVE-7640 > URL: https://issues.apache.org/jira/browse/HIVE-7640 > Project: Hive > Issue Type: Sub-task > Components: Spark > Reporter: Chengxiang Li > Assignee: Chengxiang Li > > Research and verify TABLESAMPLE support in Hive on Spark, and research > whether it can be merged with Spark sample features. -- This message was sent by Atlassian JIRA (v6.2#6252)