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https://issues.apache.org/jira/browse/CALCITE-4875?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-4875:
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Labels: pull-request-available (was: )
> NVL Function Incorrectly changes nullability field of its operands
> ------------------------------------------------------------------
>
> Key: CALCITE-4875
> URL: https://issues.apache.org/jira/browse/CALCITE-4875
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Jay Narale
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We rewrite the NVL function in
> _org/apache/calcite/sql2rel/StandardConvertletTable.java:303_ , during the
> rewrite we currently override the operands' nullability to be NOT NULL which
> is not needed. This causes issues if that operand is pushdown , since the
> input of that operand need not be not nullable whereas we forced that operand
> to be Not nullable
>
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