[jira] [Created] (CALCITE-3420) NullPointerException throws for implicit type coercion of nested SET operations

[Danny Chen (Jira)]

Danny Chen created CALCITE-3420:
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             Summary: NullPointerException throws for implicit type coercion of 
nested SET operations
                 Key: CALCITE-3420
                 URL: https://issues.apache.org/jira/browse/CALCITE-3420
             Project: Calcite
          Issue Type: Improvement
          Components: core
    Affects Versions: 1.21.0
            Reporter: Danny Chen
            Assignee: Danny Chen
             Fix For: 1.22.0


Check this sql in TypeCoercionTest:

{code:sql}
select t1_varchar20 from t1 
  union select t2_int from t2
  union select t1_int from t1
{code}




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