[HIVE-3210] Support Bucketed mapjoin on partitioned table which has two or more partitions

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.10.0
• Fix Version/s: 0.10.0
• Component/s: Query Processor
• Hadoop Flags: Reviewed
• Assignee: Navis Ryu
• Reporter: Navis Ryu
• Created: 28/Jun/12 10:17
• Updated: 02/May/13 02:30
• Resolved: 17/Jul/12 07:43

Description

Bucketed mapjoin on multiple partition seemed to have no reason to be prohibited and even safer than doing simple mapjoin.

Issue Links

• blocks: HIVE-3171 Bucketed sort merge join doesn't work when multiple files exist for small alias
• is related to: HIVE-3260 support bucketed mapjoin where the small table has different number of buckets for different partitons
• relates to: HIVE-3262 bucketed mapjoin silently ignores mapjoin hint
• relates to: HIVE-3651 bucketmapjoin?.q tests fail with hadoop 0.23