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Posted to issues@calcite.apache.org by "Ruben Q L (Jira)" <ji...@apache.org> on 2020/06/19 08:59:00 UTC

[jira] [Updated] (CALCITE-3834) Support AntiJoin in EnumerableMergeJoin

     [ https://issues.apache.org/jira/browse/CALCITE-3834?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ruben Q L updated CALCITE-3834:
-------------------------------
    Description: 
Currently, {{EnumerableMergeJoin}} only supports INNER joins. The goal of this ticket is to improve this join operator in order to support ANTI joins too.

Note: {{RelMdCollation#mergeJoin}} will need to be modified too: in case of ANTI join, it must return just the {{leftCollations}}. UPDATE: this has been done already as part of CALCITE-3833.

  was:
Currently, {{EnumerableMergeJoin}} only supports INNER joins. The goal of this ticket is to improve this join operator in order to support ANTI joins too.

Note: {{RelMdCollation#mergeJoin}} will need to be modified too: in case of ANTI join, it must return just the {{leftCollations}}.


> Support AntiJoin in EnumerableMergeJoin
> ---------------------------------------
>
>                 Key: CALCITE-3834
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3834
>             Project: Calcite
>          Issue Type: New Feature
>          Components: core
>    Affects Versions: 1.21.0
>            Reporter: Ruben Q L
>            Assignee: Ruben Q L
>            Priority: Major
>
> Currently, {{EnumerableMergeJoin}} only supports INNER joins. The goal of this ticket is to improve this join operator in order to support ANTI joins too.
> Note: {{RelMdCollation#mergeJoin}} will need to be modified too: in case of ANTI join, it must return just the {{leftCollations}}. UPDATE: this has been done already as part of CALCITE-3833.



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