[HIVE-12905] Issue with mapjoin in tez under certain conditions

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.0.1, 1.2.1, 2.0.0
• Fix Version/s: 2.0.0
• Component/s: Tez
• Target Version/s: 1.3.0, 2.0.0
• Assignee: Vikram Dixit K
• Reporter: Vikram Dixit K
• Created: 21/Jan/16 20:13
• Updated: 17/Mar/17 21:46
• Resolved: 26/Jan/16 04:54

Description

In a specific case where we have an outer join followed by another join on the same key and the non-outer side of the outer join is empty, hive-on-tez produces incorrect results.

Issue Links

• is related to: HIVE-11262 Skip MapJoin processing if the join hash table is empty