[HIVE-7063] Optimize for the Top N within a Group use case - ASF JIRA

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Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 0.14.0
Component/s: None
Labels:
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Description

It is common to rank within a Group/Partition and then only return the Top N entries within each Group.
With Streaming mode for Windowing, we should push the post filter on the rank into the Windowing processing as a Limit expression.

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HIVE-7063.1.patch
06/Jun/14 18:50
8 kB
Harish Butani
HIVE-7063.2.patch
18/Jun/14 20:23
46 kB
Harish Butani
HIVE-7063.3.patch
30/Jun/14 01:34
53 kB
Harish Butani

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Assignee:: Harish Butani

Reporter:: Harish Butani

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Dates

Created:: 14/May/14 21:44

Updated:: 13/Nov/14 19:43

Resolved:: 30/Jun/14 15:16