Review Board 1.7.22


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

Review Request #7126 - Created Sept. 15, 2012 and updated

Yin Huai
trunk
HIVE-2206
Reviewers
hive
hive-git
This optimizer exploits intra-query correlations and merges multiple correlated MapReduce jobs into one jobs. Open a new request since I have been working on hive-git.
All tests pass.
Total:
22
Open:
1
Resolved:
19
Dropped:
2
Status:
From:
Description From Last Updated Status
Combining these two queries with a UNION ALL would make it easier to visually verify the results. Carl Steinbach Sept. 24, 2012, 9:52 p.m. Open
Review request changed
Updated (Jan. 16, 2013, 7 p.m.)