[jira] [Created] (FLINK-8136) Cast exception error on Flink SQL when using DATE_FORMAT

["David Marcos (JIRA)" <ji...@apache.org>]

David Marcos created FLINK-8136:
-----------------------------------

             Summary: Cast exception error on Flink SQL when using DATE_FORMAT
                 Key: FLINK-8136
                 URL: https://issues.apache.org/jira/browse/FLINK-8136
             Project: Flink
          Issue Type: Bug
          Components: Table API & SQL
    Affects Versions: 1.4.0
         Environment: Any environment
            Reporter: David Marcos
            Priority: Blocker


Due to the shading of joda time there is a exception when CodeGenerator try to cast org.joda.time.format.DateTimeFormatter to org.apache.flink.table.shaded.org.joda.time.format.DateTimeFormatter

This can be reproduce by using DATE_FORMAT temporal function in any flink SQL

Affected scala file:
------------------------
https://github.com/apache/flink/blob/master/flink-libraries/flink-table/src/main/scala/org/apache/flink/table/codegen/CodeGenerator.scala

Affected method:
--------------------------
addReusableDateFormatter 

Affected code:
-----------------------
val field =
s"""
|final org.joda.time.format.DateTimeFormatter $fieldTerm;
|""".stripMargin


Fastest solution:
-----------------------
val field =
s"""
|final org.apache.flink.table.shaded.org.joda.time.format.DateTimeFormatter $fieldTerm;
|""".stripMargin





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