[
https://issues.apache.org/jira/browse/CALCITE-2969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16851365#comment-16851365
]
Haisheng Yuan commented on CALCITE-2969:
----------------------------------------
Regarding [CALCITE-2857|https://issues.apache.org/jira/browse/CALCITE-2857], I
think we may still need it to be open, but need to change the subject to
generate better plan for that kind of subquery, if there is no known duplicate
issue.
> Improve design of join-like relational expressions
> --------------------------------------------------
>
> Key: CALCITE-2969
> URL: https://issues.apache.org/jira/browse/CALCITE-2969
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.19.0
> Reporter: Stamatis Zampetakis
> Assignee: Danny Chan
> Priority: Major
> Labels: pull-request-available
> Time Spent: 30.5h
> Remaining Estimate: 0h
>
> The existing join-like (Join, SemiJoin, Correlate, etc.) logical and physical
> relational expressions have a few design issues which make some parts of the
> codebase complicated and difficult to understand.
> The goal of this ticket is to improve the design of the respective
> expressions based on the discussion in the dev list (see thread [Join,
> SemiJoin,
> Correlate|https://mail-archives.apache.org/mod_mbox/calcite-dev/201903.mbox/%3C8EEA04A0-4A77-4283-BD20-B019E19AE126%40apache.org%3E]).
>
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
