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Posted to issues-all@impala.apache.org by "Quanlong Huang (Jira)" <ji...@apache.org> on 2020/08/12 09:17:00 UTC

[jira] [Created] (IMPALA-10075) Reuse existing instances of unchanged partitions in REFRESH

Quanlong Huang created IMPALA-10075:
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             Summary: 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
            Reporter: Quanlong Huang
            Assignee: Quanlong Huang


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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