shizhengchao commented on pull request #13717:
URL: https://github.com/apache/flink/pull/13717#issuecomment-718395751


   Hi [~jark], after testing, this is not a bug, could you close the issue?:D
   
   Generally, after executing executeBatch in jdbc, regardless of success or 
failure, the list of preparedStatements  will be cleared


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