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https://issues.apache.org/jira/browse/HIVE-19332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16472784#comment-16472784
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Jason Dere commented on HIVE-19332:
-----------------------------------
Looks like changing StatsSetupConst.areBasicStatsUptoDate() actually affects
whether stats are actually saved to the table. Keep the original
areBasicStatsUptoDate()/areColumnStatsUptoDate() as-is, and create another
version used for query planning, which takes into account if the table is an
external table.
> Disable compute.query.using.stats for external table
> ----------------------------------------------------
>
> Key: HIVE-19332
> URL: https://issues.apache.org/jira/browse/HIVE-19332
> Project: Hive
> Issue Type: Sub-task
> Reporter: Jason Dere
> Assignee: Jason Dere
> Priority: Major
> Attachments: HIVE-19332.1.patch, HIVE-19332.2.patch,
> HIVE-19332.3.patch, HIVE-19332.4.patch, HIVE-19332.5.patch, HIVE-19332.6.patch
>
>
> Hive can use statistics to answer queries like count(*). This can be
> problematic on external tables where another tool might add files that Hive
> doesn’t know about. In that case Hive will return incorrect results.
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