[jira] [Updated] (CALCITE-2968) New AntiJoin relational expression

["Michael Mior (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-2968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Mior updated CALCITE-2968:
----------------------------------
    Fix Version/s: 1.20.0

> New AntiJoin relational expression
> ----------------------------------
>
>                 Key: CALCITE-2968
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2968
>             Project: Calcite
>          Issue Type: New Feature
>            Reporter: Ruben Quesada Lopez
>            Assignee: Ruben Quesada Lopez
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.20.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The goal of this ticket is to follow the discussion started in CALCITE-2920 (and its [PR|https://github.com/apache/calcite/pull/1110]).
> With the implementation of CALCITE-2920, RelBuilder has now a method to create an AntiJoin. However, since, for the moment, there is no "AntiJoin" expression, the only possibility to build an AntiJoin is using a LogicalCorrelate with SemiJoinType.ANTI, and that's exactly what this method does, for now.
> The idea would be to "generalize" this with the creation of a new AntiJoin (a.k.a. AntiSemiJoin) relational expression. With the implementation of  CALCITE-2969 (re-design of join-like expressions), it seems clear that the new AntiJoin expression will be a *LogicalJoin with JoinType=ANTI*. Also, it will have to be verified that:
> - this new AntiJoin works fine in EnumerableConvention with all types of join condition (equi-join, partial equi-join, non equi-join)
> - this new AntiJoin can be correctly transformed into a Correlate (type ANTI) via JoinToCorrelateRule



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