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https://issues.apache.org/jira/browse/CALCITE-5855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Itiel Sadeh reassigned CALCITE-5855:
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Assignee: Itiel Sadeh
> Implement frame exclusion in window functions
> ---------------------------------------------
>
> Key: CALCITE-5855
> URL: https://issues.apache.org/jira/browse/CALCITE-5855
> Project: Calcite
> Issue Type: Bug
> Reporter: Itiel Sadeh
> Assignee: Itiel Sadeh
> Priority: Major
>
> PostgreSQL supports "frame exclusion" in window function, e.g. :
> {code:sql}
> SELECT sum(x) OVER (PARTITION BY y ORDER BY z ROWS BETWEEN UNBOUNDED
> PRECEDING and UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) from t
> {code}
> (see
> [here|https://www.postgresql.org/docs/current/sql-expressions.html#SYNTAX-WINDOW-FUNCTIONS])
> which let you ignore some rows from the selected scope.
> This ticket is adding support for it in Calcite
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