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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