[jira] [Created] (CALCITE-4214) Make RelDataType.getSqlTypeName non-nullable

[Vladimir Sitnikov (Jira)]

Vladimir Sitnikov created CALCITE-4214:
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             Summary: Make RelDataType.getSqlTypeName non-nullable
                 Key: CALCITE-4214
                 URL: https://issues.apache.org/jira/browse/CALCITE-4214
             Project: Calcite
          Issue Type: Sub-task
          Components: core
    Affects Versions: 1.25.0
            Reporter: Vladimir Sitnikov


The code treated RelDataType.getSqlTypeName as non-nullable, so we need to 
update the javadoc and deal with abstract implementation that returns null.



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