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Posted to dev@hive.apache.org by "Prasanth J (JIRA)" <ji...@apache.org> on 2014/07/28 23:15:42 UTC
[jira] [Updated] (HIVE-7535) Make use of number of nulls column
statistics in filter rule
[ https://issues.apache.org/jira/browse/HIVE-7535?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Prasanth J updated HIVE-7535:
-----------------------------
Attachment: HIVE-7535.1.patch
> Make use of number of nulls column statistics in filter rule
> ------------------------------------------------------------
>
> Key: HIVE-7535
> URL: https://issues.apache.org/jira/browse/HIVE-7535
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor, Statistics
> Affects Versions: 0.14.0
> Reporter: Prasanth J
> Assignee: Prasanth J
> Priority: Minor
> Fix For: 0.13.0
>
> Attachments: HIVE-7535.1.patch
>
>
> The filter rule does not make use of number of nulls column statistics for "IS NULL" and "IS NOT NULL" expression evaluation.
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