HIVE-28822: Concurrent INSERTs can silently lose rows or fail with FileAlreadyExistsException on S3 (non-ACID) - #6642

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abstractdog:HIVE-28822-concurrent-insert-fix

Commits on Aug 6, 2026

HIVE-28822: Concurrent INSERTs into a new dynamic partition can silently lose rows or fail with FileAlreadyExistsException on S3 (non-ACID)

abstractdog
and
claude
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5a679e5
PR comments
abstractdog
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01209a2
HIVE-28822: move uniqueness-tag derivation to QueryPlan.extractUniquenessTag; widen to 16 hex

abstractdog
and
claude
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80087e5
TransactionalValidationListener.ORIGINAL_PATTERN_COPY
abstractdog
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6570fd3
acid_convert_16hex_copy_tag.q
abstractdog
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57e1cd4
handle only files
abstractdog
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c0267b6
TestHiveCopyFilesFakeS3, TestInsertCopySuffixOnFakeS3
abstractdog
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a86c126
testUnionAllInsertOnFakeS3 to assert exception
abstractdog
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e9f7222
sonarqube
abstractdog
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5181edf