[jira] [Created] (IMPALA-14089) Support REFRESH on multiple partitions

["Quanlong Huang (Jira)" <ji...@apache.org>]

Quanlong Huang created IMPALA-14089:
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             Summary: Support REFRESH on multiple partitions
                 Key: IMPALA-14089
                 URL: https://issues.apache.org/jira/browse/IMPALA-14089
             Project: IMPALA
          Issue Type: New Feature
          Components: Catalog, Frontend
            Reporter: Quanlong Huang
            Assignee: Quanlong Huang


This is the first step for IMPALA-4105 to help users combine multiple partition level REFRESH statements into one:
{code:sql}
REFRESH <table>
  PARTITION (...)
  PARTITION (...)
  PARTITION (...)
  ...
{code}
This reduces table lock contention in catalogd side and avoids the table version being increased multiple times. Also improves the overall performance by loading partitions in parallel.



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