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https://issues.apache.org/jira/browse/HIVE-2614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251329#comment-13251329
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Amareshwari Sriramadasu commented on HIVE-2614:
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bq. @Amareshwari: Can you give a concrete example of a use-case for this new
call? In general I think providing calls like this is a bad idea since it
encourages people to accidentally add time-of-check-to-time-of-use bugs, e.g.
HIVE-2938.
Main motivation here is to improve performance of exists check, which would
just return boolean instead of the full partition. The use-case we were looking
mainly was filtering i.e. processing the partitions that do not exists yet and
add them.
> Thrift api to know if partition exists or not
> ---------------------------------------------
>
> Key: HIVE-2614
> URL: https://issues.apache.org/jira/browse/HIVE-2614
> Project: Hive
> Issue Type: Improvement
> Components: Metastore
> Reporter: Amareshwari Sriramadasu
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.9.0
>
>
> Currently if we want to know if a partition exists or not, we should call
> get_partition() which constructs the partition and returns. This would
> require joining multiple tables at the metastore end and it might not scale
> for many such operations.
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