Re: [I] add support for casting string to decimal [datafusion]

["finlaydotb (via GitHub)" <gi...@apache.org>]

finlaydotb commented on issue #3478:
URL: https://github.com/apache/datafusion/issues/3478#issuecomment-2143466497

   > ```
   > ❯ select arrow_typeof('1.1'::decimal);
   > +--------------------------+
   > | arrowtypeof(Utf8("1.1")) |
   > +--------------------------+
   > | Decimal128(38, 10)       |
   > +--------------------------+
   > 1 row in set. Query took 0.030 seconds.
   > ```
   
   Maybe someone can help clarify...Why does this come out as `Decimal128(38, 10)`? Where is the `38` and `10` coming from


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