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Posted to issues@flink.apache.org by "Dezhi Cai (Jira)" <ji...@apache.org> on 2019/11/27 09:06:00 UTC

[jira] [Created] (FLINK-14970) fDoomed test for equality to NaN

Dezhi Cai created FLINK-14970:
---------------------------------

             Summary: fDoomed test for equality to NaN
                 Key: FLINK-14970
                 URL: https://issues.apache.org/jira/browse/FLINK-14970
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
    Affects Versions: 1.9.1, 1.9.0, 1.8.2
            Reporter: Dezhi Cai
         Attachments: image-2019-11-27-16-51-00-150.png, image-2019-11-27-16-51-06-801.png

scala pattern matching can't handle "NaN","NegativeInfinity " etc.

in GenerateUtils, CodeGenerator, some code logic fall into this issue, please refer to

the screenshot for details.
{code:java}
def main(args: Array[String]): Unit = {
  val floatVaue = Float.NaN
  floatVaue match {
    case Float.NaN => println("Float.NaN")
    case Float.NegativeInfinity => println("Float.NegativeInfinity")
    case _ => println("not match")
  }
}

will output: not match{code}
 

org.apache.flink.table.planner.codegen.GenerateUtils

!image-2019-11-27-16-51-06-801.png|width=723,height=257!

org.apache.flink.table.codegen.CodeGenerator

!image-2019-11-27-16-51-00-150.png|width=727,height=158!



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