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Posted to dev@hive.apache.org by "Namit Jain (Updated) (JIRA)" <ji...@apache.org> on 2011/10/24 22:26:32 UTC
[jira] [Updated] (HIVE-2416) Multiple distinct function to support
hive.groupby.skewindata optimization
[ https://issues.apache.org/jira/browse/HIVE-2416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Namit Jain updated HIVE-2416:
-----------------------------
Status: Open (was: Patch Available)
> Multiple distinct function to support hive.groupby.skewindata optimization
> --------------------------------------------------------------------------
>
> Key: HIVE-2416
> URL: https://issues.apache.org/jira/browse/HIVE-2416
> Project: Hive
> Issue Type: Improvement
> Reporter: Ted Xu
> Assignee: Ted Xu
> Attachments: multi_distinct_skew.patch
>
>
> Currently when multiple distinct function is used, hive.groupby.skewindata optimization parameter shall be set false, or else an exception is raised:
> {code}
> Error in semantic analysis: DISTINCT on different columns not supported with skew in data
> {code}
> Skew groupby should support multiple distinct function
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