[Enhancement](sql-cache) Add partition update time for hms table and use it at sql-cache. (#24491) #25382
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…use it at sql-cache. (apache#24491) Now FE does not record the update time of hms tbl's partitons, so the sql cache may be hit even the hive table's partitions have changed. This pr add a field to record the partition update time, and use it when enable sql-cache. The cache will be missed if any partition has changed at hive side. Use System.currentTimeMillis() but not the event time of hms event because we would better keep the same measurement with the schemaUpdateTime of external table. Add this value to ExternalObjectLog and let slave FEs replay it because it is better to keep the same value with all FEs, so the sql-cache can be hit by the querys through different FEs.
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run buildall |
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(From new machine)TeamCity pipeline, clickbench performance test result: |
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backport #24491