[HIVE-20240] Semijoin Reduction : Use local variable to check for external table condition

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Assignee: Deepak Jaiswal
• Reporter: Deepak Jaiswal
• Created: 26/Jul/18 00:20
• Updated: 30/Jul/18 17:19
• Resolved: 30/Jul/18 17:19

Description

This condition,

 

semiJoin = semiJoin && !disableSemiJoinOptDueToExternalTable(parseContext.getConf(), ts, ctx);

 

may set semiJoin to false if an external table is encountered and will remain false for subsequent cases. It should only disable it for that particular case.

 

cc jdere

Issue Links

• links to: RB