[HIVE-965] optimize skewed joins

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Query Processor
• Labels: optimization
• Assignee: Unassigned
• Reporter: Namit Jain
• Created: 02/Dec/09 02:07
• Updated: 02/May/13 02:29

Description

As a followup of https://issues.apache.org/jira/browse/HIVE-964, the joins for the skewed keys can be performed by using techniques similar to http://wiki.apache.org/pig/PigSkewedJoinSpec

Issue Links

• is depended upon by: HIVE-562 join does not work well if there is a very large skew in keys