joellubi opened a new pull request, #43206:
URL: https://github.com/apache/arrow/pull/43206
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### Rationale for this change
Fixes: #43186
Improves 32-bit support for the pqarrow writer. We may want to push similar
changes to other refcount implementations to more completely support running on
32-bit system.
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### What changes are included in this PR?
Update `pathBuilder` and `multipathLevelBuilder` refCounts to use
`atomic.Int64` which is automatically aligned on 32-bit systems.
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### Are these changes tested?
They have been tested locally by running `GOARCH=386 go test -tags noasm
./parquet/file/...`.
The issue reproduces with existing tests when building for a 32-bit
architecture, so no new tests were added. We may want to add 32-bit tests to CI
which could help catch regressions in the future, but they are only passing in
the specified subdirectory (`parquet/file/...`) at this time.
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### Are there any user-facing changes?
32-bit systems should no longer panic when writing parquet files.
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