[HIVE-4105] Hive MapJoinOperator unnecessarily deserializes values for all join-keys - ASF JIRA

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Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 0.11.0
Component/s: None
Labels:
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Description

We can avoid this for inner-joins. Hive does an explicit value de-serialization up front so even for those rows which won't emit output. In these cases, we can do just with key de-serialization.

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HIVE-4105.patch
09/Apr/13 18:27
2 kB
Vinod Kumar Vavilapalli
HIVE-4105-20130301.1.txt
01/Mar/13 23:59
2 kB
Vinod Kumar Vavilapalli
HIVE-4105-20130301.txt
01/Mar/13 23:32
2 kB
Vinod Kumar Vavilapalli
HIVE-4105-20130415.txt
15/Apr/13 18:20
2 kB
Vinod Kumar Vavilapalli

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Assignee:: Vinod Kumar Vavilapalli

Reporter:: Vinod Kumar Vavilapalli

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Dates

Created:: 01/Mar/13 23:15

Updated:: 16/May/13 21:10

Resolved:: 16/Apr/13 14:29