branch-4.0: [fix](iceberg) Invalidate related-table cache on external table refresh #60867#60885
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yiguolei merged 1 commit intobranch-4.0from Mar 1, 2026
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…sh (#60867) Related PR: #57972 Problem Summary: In multi-FE deployments, Iceberg partition evolution (ADD/REPLACE/DROP PARTITION KEY) can leave some FEs with a stale `IcebergExternalTable.isValidRelatedTableCached` value. This stale cache may cause incorrect partitioned/unpartitioned judgment and query failures until the table is refreshed. This PR: - Clears the related-table validation cache during `OP_REFRESH_EXTERNAL_TABLE` replay (`RefreshManager.refreshTableInternal()`). - Removes the redundant per-operation manual cache clearing in `IcebergMetadataOps`.
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Cherry-picked from #60867