branch-4.0: [fix](maxcompute)fix maxcompute push down predicates null pointer. #57474#57568
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yiguolei merged 1 commit intobranch-4.0from Nov 3, 2025
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…57474) ### What problem does this PR solve? Problem Summary: This PR is a continuation of PR #55635. Based on the current investigation, the conclusion in PR #55635 appears to be incorrect — the reason why the predicate column cannot be found in the columnMap remains unclear. To help with further debugging, this PR adds additional log information. In addition, during the `refresh table` process, the MaxComputeExternalTable object remains unchanged, so the objects it holds also stay the same. When initializing the table schema, the map maintained by this object may have repeated `put` operations. So, move this map to `MaxComputeSchemaCacheValue`, which better matches its lifecycle and avoids repeated updates during table refresh.
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yiguolei
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Nov 3, 2025
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Cherry-picked from #57474