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GH-1228: Arrow Format 1.5: Decimal32/Decimal64 support#1227

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robert3005:rk/decimal3264
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GH-1228: Arrow Format 1.5: Decimal32/Decimal64 support#1227
robert3005 wants to merge 1 commit into
apache:mainfrom
robert3005:rk/decimal3264

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@robert3005 robert3005 commented Jul 14, 2026

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What's Changed

Add support arrow format spec 1.5. We were missing Decimal32/64 in arrow-java which were added to the spec on Sep 10, 2024. The code is mostly analogous to other two decimal types. The one thing that I didn't want to break is to not rename DecimalArray to Decimal128Array, therefore the other 3 arrays have width in their name while 128 does not.

This pr was authored with help of Claude Fable 5

closes #1228

Signed-off-by: Robert Kruszewski <github@robertk.io>
@robert3005 robert3005 changed the title Arrow Format 1.5: Decimal32/Decimal64 support GH-1228: Arrow Format 1.5: Decimal32/Decimal64 support Jul 14, 2026
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I don't think I am allowed to add labels, but this should be an 'enhancement'

@lidavidm lidavidm added the enhancement PRs that add or improve features. label Jul 14, 2026
@github-actions github-actions Bot added this to the 20.0.0 milestone Jul 14, 2026
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Support Format Spec 1.5 - Decimal32/64

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