[GitHub] [arrow-datafusion] andygrove commented on issue #4035: Decimal multiplied by Float produces incorrect results

[GitBox <gi...@apache.org>]

andygrove commented on issue #4035:
URL: https://github.com/apache/arrow-datafusion/issues/4035#issuecomment-1296292768

   Here is some more odd behavior:
   
   ```
   ❯ select cast(400420638.54 as decimal(32,15)) * cast(0.1 as decimal(32,15));
   +--------------------------------------+
   | Float64(400420638.54) * Float64(0.1) |
   +--------------------------------------+
   | 40042063.854000005133107             |
   +--------------------------------------+
   1 row in set. Query took 0.001 seconds.
   ```
   
   ```
   ❯ select cast(400420638.54 as decimal(32,16)) * cast(0.1 as decimal(32,16));
   +--------------------------------------+
   | Float64(400420638.54) * Float64(0.1) |
   +--------------------------------------+
   | -791820.1765126158512068             |
   +--------------------------------------+
   1 row in set. Query took 0.000 seconds.
   ```


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