[HIVE-9984] JoinReorder's getOutputSize is exponential - ASF JIRA

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Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 1.2.0
Component/s: None
Labels:
- TODOC1.2

Description

Found by mmokhtar. Causes major issues in large plans (50+ joins). Simple fix would be to memoize the recursion. There should also be a flag to switch this opt off.

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HIVE-9984.2.patch
17/Mar/15 00:18
4 kB
Gopal Vijayaraghavan
HIVE-9984.1.patch
16/Mar/15 23:15
5 kB
Gunther Hagleitner

Activity

People

Assignee:: Gopal Vijayaraghavan

Reporter:: Gunther Hagleitner

Votes:: 0 Vote for this issue

Watchers:: 7 Start watching this issue

Dates

Created:: 16/Mar/15 23:00

Updated:: 18/May/15 19:51

Resolved:: 18/Mar/15 23:52