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https://issues.apache.org/jira/browse/CALCITE-6343?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-6343:
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Labels: pull-request-available (was: )
> AS alias operator strips MEASUREness from measures
> --------------------------------------------------
>
> Key: CALCITE-6343
> URL: https://issues.apache.org/jira/browse/CALCITE-6343
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.36.0
> Reporter: Barry Kelly
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.37.0
>
>
> [CALCITE-5869|https://issues.apache.org/jira/browse/CALCITE-5869] introduced
> a change which removes MEASURE when inferring the return type when an
> operator is applied.
> The {{AS}} keyword for aliases is implemented as an operator in the SQL AST.
> Using {{AS}} removes MEASURE when typing expressions that have an alias in
> the {{SELECT}} clause.
> Thus, the type of {{SELECT m}} and {{SELECT m AS m}} are different when {{m}}
> is a measure. This is not desirable.
> Proposed fix: don't change type when using the {{AS}} operator.
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