[jira] [Created] (FLINK-5177) Improve nullability handling

[Shang Yuanchun (Jira)]

Timo Walther created FLINK-5177:
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             Summary: Improve nullability handling
                 Key: FLINK-5177
                 URL: https://issues.apache.org/jira/browse/FLINK-5177
             Project: Flink
          Issue Type: Improvement
          Components: Table API & SQL
            Reporter: Timo Walther


Currently, all fields of the Table API are marked as nullable by default. A lot of null checking could be avoided if we would properly handle nullability. Fields of tuples and POJOs with primitive fields can not be null. Elements of primitive arrays too.



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