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https://issues.apache.org/jira/browse/HIVE-19867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16522959#comment-16522959
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Steve Yeom commented on HIVE-19867:
-----------------------------------
A simple idea is that
1. We save writeId of the stats updater into TBLS/PARTITIONS.
2. When we update stats, we check whether the new stats updater's writeId is in
the old
stats updater's writeIdList and check whether the old stats updater's writeId
is in the current stats
updater's writeIdList. If both are true it is concurrent update.
Thus we turn to false the COLUMN_STATS_ACCURATE of the current
table/partition.
> Test and verify Concurrent INSERTS
> ------------------------------------
>
> Key: HIVE-19867
> URL: https://issues.apache.org/jira/browse/HIVE-19867
> Project: Hive
> Issue Type: Sub-task
> Components: Transactions
> Affects Versions: 4.0.0
> Reporter: Steve Yeom
> Assignee: Steve Yeom
> Priority: Major
> Fix For: 4.0.0
>
>
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