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https://issues.apache.org/jira/browse/KYLIN-1594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15245397#comment-15245397
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Zhong Yanghong commented on KYLIN-1594:
---------------------------------------
In org.apache.calcite.sql2rel.SqlToRelConverter, it ignores the operator OVER,
as follows:
// ignore window aggregates and ranking functions (associated with OVER
operator)
if (call.getOperator().getKind() == SqlKind.OVER) {
return null;
}
Calcite provides this window function, "RANK() over window", while kylin
ignores it. Does it mean it's infeasible or would be implemented later?
> Requirement function of RANK() over window in SQL
> -------------------------------------------------
>
> Key: KYLIN-1594
> URL: https://issues.apache.org/jira/browse/KYLIN-1594
> Project: Kylin
> Issue Type: New Feature
> Components: Query Engine
> Reporter: Zhong Yanghong
> Assignee: liyang
>
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