goldmedal commented on issue #10688: URL: https://github.com/apache/datafusion/issues/10688#issuecomment-2139760705
Indeed, it's a conversion issue. I tried to dig into the root cause and found that arrow-cast uses the crate [num](https://crates.io/crates/num) to handle casting problems. I tried to use it directly: ``` let value_32: f32 = 128.2; println!("value_32: {:?}", value_32); let value_64: f64 = num::cast(value_32).unwrap(); println!("value_64: {:?}", value_64); ------------------- value_32: 128.2 value_64: 128.1999969482422 ``` I have no idea how to fix it in DataFusion. Maybe we need to go back to the crate `num` to fix this behavior? @comphead WDYT? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
