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Posted to issues-all@impala.apache.org by "Quanlong Huang (Jira)" <ji...@apache.org> on 2020/10/27 04:55:00 UTC
[jira] [Resolved] (IMPALA-10075) Reuse existing instances of
unchanged partitions in REFRESH
[ https://issues.apache.org/jira/browse/IMPALA-10075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Quanlong Huang resolved IMPALA-10075.
-------------------------------------
Fix Version/s: Impala 4.0
Resolution: Fixed
> Reuse existing instances of unchanged partitions in REFRESH
> -----------------------------------------------------------
>
> Key: IMPALA-10075
> URL: https://issues.apache.org/jira/browse/IMPALA-10075
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Reporter: Quanlong Huang
> Assignee: Quanlong Huang
> Priority: Critical
> Fix For: Impala 4.0
>
>
> It's revealed by IMPALA-3127 that REFRESH will always update all partition instances (at least after IMPALA-9778). We should check if the new partition instance is the same as the original one, and only update them when needs. This reduce unneccessary catalog updates.
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