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From "周宇睿(闻拙)" <yurui....@alibaba-inc.com>
Subject decimal 64/32 for low pricision decimal
Date Mon, 11 Mar 2019 08:13:13 GMT
Hi

I noticed that currently Arrow has Decimal128 as the only decimal type with 128 bit width.
However, for decimal values with precision smaller than 18, it's kind of wastful to use 128
bit while 64 bit is more than enough. I am wondering is it possible for Arrow to implement
types like Decimal64 or even Decimal32 for small pricsion decimal value? 

Thanks
Yurui 

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