[
https://issues.apache.org/jira/browse/CALCITE-3524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16978900#comment-16978900
]
Julian Hyde commented on CALCITE-3524:
--------------------------------------
Makes sense.
Before we start changing {{RelBuilder}}, I would like to see some examples in
this JIRA case of the code that one would write against {{RelBuilder}} to
create the equivalent of IN, EXISTS, SOME, ANY SQL queries, perhaps with
correlating variables.
(A previous proposal referenced fields by position, and we we had to re-work it
to reference fields as expressions, which is consistent with the rest of
{{RelBuilder}}.)
> Add support for RexSubQuery creation from RelBuilder
> ----------------------------------------------------
>
> Key: CALCITE-3524
> URL: https://issues.apache.org/jira/browse/CALCITE-3524
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Amir Gajst
> Assignee: Amir Gajst
> Priority: Minor
>
> When building relational expressions, the simplest way is by using the
> RelBuilder which does not currently support creation of a RexSubQuery.
> We can add RexSubQuery creation functions to the RelBuilder to make it more
> "visible" and convenient to use.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
