Review Board 1.7.22


HIVE-2206: add a new optimizer for query correlation discovery and optimization

Review Request #2001 - Created Sept. 21, 2011 and updated

Yin Huai
trunk
HIVE-2206
Reviewers
hive
hive
This optimizer exploits intra-query correlations and merges multiple correlated MapReduce jobs into one jobs.

 
Review request changed
Updated (Feb. 10, 2012, 8:49 p.m.)
updated patch on revision 1237253. Will generate the patch based on the latest trunk latter.