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https://issues.apache.org/jira/browse/HIVE-1644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13010401#comment-13010401
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Namit Jain commented on HIVE-1644:
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Also, can you add another check - only use the index if the size of the input
is greater than a certain
size (5G - make it configurable). This can be a check per index type - bitmap
indices can have a similar
check.
As Yongqiang said, 3. can be a follow-up task.
> use filter pushdown for automatically accessing indexes
> -------------------------------------------------------
>
> Key: HIVE-1644
> URL: https://issues.apache.org/jira/browse/HIVE-1644
> Project: Hive
> Issue Type: Improvement
> Components: Indexing
> Affects Versions: 0.7.0
> Reporter: John Sichi
> Assignee: Russell Melick
> Attachments: HIVE-1644.1.patch, HIVE-1644.10.patch,
> HIVE-1644.2.patch, HIVE-1644.3.patch, HIVE-1644.4.patch, HIVE-1644.5.patch,
> HIVE-1644.6.patch, HIVE-1644.7.patch, HIVE-1644.8.patch, HIVE-1644.9.patch
>
>
> HIVE-1226 provides utilities for analyzing filters which have been pushed
> down to a table scan. The next step is to use these for selecting available
> indexes and generating access plans for those indexes.
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