[GitHub] [beam] lifesucks6000 opened a new issue, #22486: [Bug]: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String issue with Boolean field

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

lifesucks6000 opened a new issue, #22486:
URL: https://github.com/apache/beam/issues/22486

   ### What happened?
   
   **Beam version: 2.30**
   **Flink version: 1.12.5**
   
   When I tried to run my beam pipeline with **FlinkRunner**, I got this error -
   `java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String`
   
   Although when I ran it with beam **DirectRunner**, it ran fine with no error.
   
   The field type on which this issue is occurring is of **Boolean** type. While reading from SQLServer 2008 DB, a Boolean field is treated as **Logical** type field. Here we are building the schema with the help of this method - 
   
   `Schema.Field booleanField  = Schema.Field.nullable(name,Schema.FieldType.BOOLEAN);`
   
   I managed to find a work around for this error with a slight change in the way I was building my schema : 
   
   `Schema.Field booleanField = Schema.Field.nullable(name,Schema.FieldType.of(Schema.TypeName.BOOLEAN));`
   
   But shouldn't both of these code changes would have worked in the same way? The former has worked for me in previous versions.
   I think there is some compatibility issue with Apache Beam and FlinkRunner on Boolean data type
   
   ### Issue Priority
   
   Priority: 2
   
   ### Issue Component
   
   Component: runner-flink


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[GitHub] [beam] kennknowles commented on issue #22486: [Bug]: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String issue with Boolean field

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

kennknowles commented on issue #22486:
URL: https://github.com/apache/beam/issues/22486#issuecomment-1335957751

   Yes, or even a full stack trace so we know where this is occurring. But code to reproduce would be best if we are to address this.


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[GitHub] [beam] je-ik commented on issue #22486: [Bug]: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String issue with Boolean field

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

je-ik commented on issue #22486:
URL: https://github.com/apache/beam/issues/22486#issuecomment-1298217936

   Can you attach some simple code to reproduce this?


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