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https://issues.apache.org/jira/browse/CALCITE-3082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Laurent Goujon resolved CALCITE-3082.
-------------------------------------
Resolution: Fixed
Fix Version/s: 1.20.0
Fixed in
https://github.com/apache/calcite/commit/d8768f9c07fa3927475902e27c13c8bc39687897
> NPE in SqlUtil#getSelectListItem
> --------------------------------
>
> Key: CALCITE-3082
> URL: https://issues.apache.org/jira/browse/CALCITE-3082
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Laurent Goujon
> Assignee: Laurent Goujon
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.20.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Queries similar to {{SELECT 1 UNION SELECT 2, 3}} causes validator to throws
> a {{NullPointerException}} instance instead of a proper error message about
> the column count mismatch.
> {{SqlUtil#getSelectListItem}} is used by Set operators to get select items if
> the types of operands don't match. Unfortunately the method may throw an NPE
> exception if one of the operand doesn't have a FROM clause.
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