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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2017/12/01 23:36:00 UTC
[jira] [Commented] (HIVE-18163) Stats: create materialized view
should also collect stats
[ https://issues.apache.org/jira/browse/HIVE-18163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16275187#comment-16275187 ]
Jesus Camacho Rodriguez commented on HIVE-18163:
------------------------------------------------
+1
> Stats: create materialized view should also collect stats
> ---------------------------------------------------------
>
> Key: HIVE-18163
> URL: https://issues.apache.org/jira/browse/HIVE-18163
> Project: Hive
> Issue Type: Sub-task
> Components: Statistics
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Attachments: HIVE-18163.01.patch, HIVE-18163.02.patch, HIVE-18163.03.patch
>
>
> not having basic stats on the materialized view may cause it to be "ruled out" as a viable alternative by the cbo.
> repro set {{set hive.stats.deserialization.factor=10.0}} in {{ql/src/test/queries/clientpositive/materialized_view_create_rewrite.q}}
> blocks: HIVE-18149
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