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https://issues.apache.org/jira/browse/CALCITE-3420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Danny Chen resolved CALCITE-3420.
---------------------------------
Resolution: Fixed
Fixed in
[2ac4415|https://github.com/apache/calcite/commit/2ac44153c4a521694c4dc975dd37b097184fc998]
!
> 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
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.22.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> 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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