+1 (binding) In <cah4123zv0ph37hrufui1oejzddt3+fwkturk1unpsjmrzuk...@mail.gmail.com> "[VOTE] Allow Decimal32 and Decimal64 bitwidths in Arrow Format" on Wed, 4 Sep 2024 17:17:49 -0400, Matt Topol <zotthewiz...@gmail.com> wrote:
> Based on various discussions among the ecosystem and to continue expanding > the zero-copy interoperability for Arrow to be used with different > libraries and databases (such as libcudf, ClickHouse, etc) I would like to > propose that we extend the allowable bit-widths for Arrow Decimal types to > allow 32-bit and 64-bit decimals. > > The Arrow Spec currently defines the Decimal type as a parameterized type, > parameterized by the bit-width, and then just specifies that the only > allowed bitwidths are 128 and 256. Thus, rather than adding an entirely new > type we could simply expand what is allowed for the bitwidth field which > makes the format side of this a very small change. > > I've uploaded a PR for adding support for this to C++ [1] and will be > uploading a PR for a corresponding Go change within the next day and will > respond to this thread with the link. > > The vote will be open for at least 72 hours. > > [ ] +1 - Update the Arrow Spec to allow for 32-bit and 64-bit bitwidths for > Arrow Decimal types > [ ] +0 > [ ] -1 - Do not update the Arrow Spec to allow for 32-bit and 64-bit > bitwidths for Arrow Decimal types because.... > > Thanks everyone! > > --Matt > > [1]: https://github.com/apache/arrow/pull/43957
