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https://issues.apache.org/jira/browse/HIVE-18851?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Shelukhin updated HIVE-18851:
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Summary: make Hive basic stats valid for ACID; clean up and refactor the
code (was: make Hive basic stats valid for ACID; cleanup and refactor the code)
> make Hive basic stats valid for ACID; clean up and refactor the code
> --------------------------------------------------------------------
>
> Key: HIVE-18851
> URL: https://issues.apache.org/jira/browse/HIVE-18851
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Priority: Major
>
> Based on HIVE-18571 that started as a couple small fixes for MM tables, but
> ends up making stats for ACID tables work better in general, but not
> rigorously and not for all cases.
> Overall I've discovered that Hive stats code is spread all over in random
> places in code base and is brittle and inconsistent, esp. for any complex
> scenario like ACID tables.
> I think at the minimum it should be moved to a single spot (so that e.g.
> BasicStatsTask, BasicStatsTaskNoJob, metastore stats generation, etc all use
> the same code with the same logic) and made valid for ACID.
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