[jira] [Created] (FLINK-8045) Add Internal DATE/TIME/TIMESTAMP as internal representation of DATE/TIME/TIMESTAMP

["Zhenghua Gao (JIRA)" <ji...@apache.org>]

Zhenghua Gao created FLINK-8045:
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             Summary: Add Internal DATE/TIME/TIMESTAMP as internal representation of DATE/TIME/TIMESTAMP
                 Key: FLINK-8045
                 URL: https://issues.apache.org/jira/browse/FLINK-8045
             Project: Flink
          Issue Type: Improvement
          Components: Table API & SQL
            Reporter: Zhenghua Gao
            Assignee: Zhenghua Gao


    Currently DATE/TIME/TIMESTAMP have internal representation. Such as Date is represented as Int internal. This feature may improve performance processing DATE/TIME/TIMESTAMP data. But I found there is a LIMITATION: internal representation exists only within one operator. 
We transfer DATE/TIME/TIMESTAMP objects between operators.
     I think we could treat DATE/TIME/TIMESTAMP as internal representation in the whole job, and cast them to java.sql.* as needed(UDF/UDTF/OUTPUT)




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