Add decimal32 and decimal64 support to Parquet, JSON and CSV readers and writers #7841
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github-actions
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added
parquet
mbrobbel
approved these changes
Jul 14, 2025
Co-authored-by: Matthijs Brobbel <[email protected]>
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Thanks @alamb! I'd somehow forgotten about this :/. |
No worries -- I didn't want to have the same thing happen last time where we forgot to merge the changes for months 😢 |
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Thanks again @CurtHagenlocher and @mbrobbel |
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Which issue does this PR close?
What changes are included in this PR?
This change adds
decimal32anddecimal64support to Parquet, JSON and CSV readers and writers. It does not change the current default behavior of the Parquet reader which (in the absence of a specification that says otherwise) will still translate the INT32 physical type with a logical DECIMAL type into adecimal128instead of adecimal32.Are these changes tested?
Yes.
Are there any user-facing changes?
The
decimal32anddecimal64types are now supported in Parquet, JSON and CSV readers and writers.