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https://issues.apache.org/jira/browse/CALCITE-5779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Sysolyatin reassigned CALCITE-5779:
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Assignee: (was: Dmitry Sysolyatin)
> Implicit column alias for single-column table function does not work
> --------------------------------------------------------------------
>
> Key: CALCITE-5779
> URL: https://issues.apache.org/jira/browse/CALCITE-5779
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.34.0
> Reporter: Dmitry Sysolyatin
> Priority: Major
>
> Implicit column alias for single-column table function works only for UNNEST.
> But should work for every table function.
> For example, PostgreSQL returns the same result for
> {code:java}
> SELECT i FROM UNNEST(ARRAY(1,2)) as i;
> SELECT i FROM generate_series(1,2) as i;
> i
> ---
> 1
> 2
> (2 rows)
> {code}
> But calcite throws "Column 'i' not found in any table" exception for
> {code:java}
> SELECT i FROM table(generate_series(1,2)) as i
> {code}
> Where generate_series is user defined table function.
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