[
https://issues.apache.org/jira/browse/CALCITE-6343?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Julian Hyde updated CALCITE-6343:
---------------------------------
Summary: Ensure that AS operator (column alias) doesn't change return type
of measures (was: AS alias operator strips MEASUREness from measures)
> Ensure that AS operator (column alias) doesn't change return type of 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: 1.38.0
>
>
> 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.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
