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Posted to github@datafusion.apache.org by "oleggator (via GitHub)" <gi...@apache.org> on 2024/08/08 12:54:09 UTC

[I] Float to int cast behaviour [datafusion]

oleggator opened a new issue, #11886:
URL: https://github.com/apache/datafusion/issues/11886

   At the moment, DataFusion casts floats to integers using the floor function.
   Is it possible to configure this behavior?
   
   ## Actual
   ```
   select cast(2.8 as int) as result;
   +--------+
   | result |
   +--------+
   | 2      |
   +--------+
   ```
   
   ## Expected
   This way work Postgresql and MySQL.
   ```
   select cast(2.8 as int) as result;
   +--------+
   | result |
   +--------+
   | 3      |
   +--------+
   ```


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Re: [I] Float to int cast behaviour [datafusion]

Posted by "jayzhan211 (via GitHub)" <gi...@apache.org>.
jayzhan211 commented on issue #11886:
URL: https://github.com/apache/datafusion/issues/11886#issuecomment-2275937010

   I think we would need to support configuration in arrow-rs first. The actual casting is here https://github.com/apache/arrow-rs/blob/e28cf44e65cdd1fefaa1b857ca4336e7a9da5d06/arrow-cast/src/cast/mod.rs#L2177


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