danzhewuju opened a new issue, #5263: URL: https://github.com/apache/paimon/issues/5263
### Search before asking - [x] I searched in the [issues](https://github.com/apache/paimon/issues) and found nothing similar. ### Paimon version paimon-1.0 ### Compute Engine Flink 1.17 ### Minimal reproduce step Insert any floating-point data with five or more decimal places into the Paimon table. ### What doesn't meet your expectations? Thers is the code that cast string to float。 In fact, when a number has four decimal places, converting a float type to a String type will result in scientific notation. In this case, directly comparing their string lengths is meaningless. However, when the number has exactly four decimal places, the lengths happen to be the same (e.g. len(0.0001) = len(2.0E-4)). so when there are exactly faive decimal places, which will throw the exception. ``` case FLOAT: double d = Double.parseDouble(s); if (d == ((float) d)) { return (float) d; } else { // Compatible canal-cdc Float f = Float.valueOf(s); if (f.toString().length() != s.length()) { throw new NumberFormatException( s + " cannot be cast to float due to precision loss"); } else { return f; } } ```  <img width="812" alt="Image" src="https://github.com/user-attachments/assets/c5283d2d-a847-44c8-8012-1dbec2ba0bd2"; /> org.apache.paimon.utils.TypeUtils#castFromStringInternal() ### Anything else? _No response_ ### Are you willing to submit a PR? - [x] I'm willing to submit a PR! -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
