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Problem
When IDENTIFIER FIELDS are set, and
merge-on-readmode is used, a validation error occurs due to incorrect metadata schema checks.Solution
Adjusted the
calculateMetadataSchema()method inSparkScanBuilderto avoid validating identifier fields in metadata columns.Tests
Added unit tests in
TestMergeOnReadWithIdentifierFieldsDelete、TestMergeOnReadWithIdentifierFieldsMergeandTestMergeOnReadWithIdentifierFieldsUpdateto validate the fix.Closes #11709