[jira] [Commented] (CALCITE-2277) Skip SemiJoin operator in materialized view-based rewriting algorithm

["Julian Hyde (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-2277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16450205#comment-16450205 ] 

Julian Hyde commented on CALCITE-2277:
--------------------------------------

We knew that making SemiJoin extend Join was going to cause these kinds of problems. (Not that it was the wrong decision.) [~jcamachorodriguez], can you do a quick scan of other rules to see if this problem might exist elsewhere.

> Skip SemiJoin operator in materialized view-based rewriting algorithm
> ---------------------------------------------------------------------
>
>                 Key: CALCITE-2277
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2277
>             Project: Calcite
>          Issue Type: Bug
>    Affects Versions: 1.16.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>             Fix For: 1.17.0
>
>
> {{AbstractMaterializedViewRule}} is not recognizing the difference between SemiJoin and Join operator, since SemiJoin inherits from Join. This can lead to incorrect rewriting and errors in the rewriting logic.



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