fix(parquet/pqarrow): reject out-of-range INT96 timestamps - #1128
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fallintoplace wants to merge 3 commits into
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fix(parquet/pqarrow): reject out-of-range INT96 timestamps#1128fallintoplace wants to merge 3 commits into
fallintoplace wants to merge 3 commits into
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fallintoplace
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August 7, 2026 22:13
fallintoplace
marked this pull request as draft
August 7, 2026 22:18
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Rationale for this change
transferInt96 converts Parquet INT96 values through time.Time.UnixNano without checking the int64 nanosecond range. Very wide dates can therefore wrap when read as Arrow timestamp[ns].
What changes are included in this PR?
Add checked INT96 to nanosecond conversion, propagate conversion errors through the Parquet reader, and normalize Int96.ToTime without overflowing before the range check.
Are these changes tested?
go test ./parquet/pqarrow -run 'Test(ArrowTimestampToImpalaTimestamp|ReadInt96RejectsOutOfRangeTimestamp|WriteArrowInt96)$'Are there any user-facing changes?
In-range INT96 behavior is unchanged. Out-of-range INT96 timestamps now return an error instead of being wrapped.