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https://issues.apache.org/jira/browse/CALCITE-3535?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruben Q L updated CALCITE-3535:
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    Attachment: threadDump.txt

> EnumerableJoinRule: remove unnecessary Filter on top of INNER Join
> ------------------------------------------------------------------
>
>                 Key: CALCITE-3535
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3535
>             Project: Calcite
>          Issue Type: Task
>          Components: core
>    Affects Versions: 1.21.0
>            Reporter: Ruben Q L
>            Assignee: Ruben Q L
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 1.22.0
>
>         Attachments: threadDump.txt
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> With the implementation of CALCITE-2973, now EnumerableHashJoin supports all 
> type of conditions (not just equi joins). However, there is still one 
> [TODO|https://github.com/apache/calcite/blob/07c1efbb2b42a0e27f9d01968d357d9c1e17cd51/core/src/main/java/org/apache/calcite/adapter/enumerable/EnumerableJoinRule.java#L89]
>  in EnumerableHashJoinRule that, in case of an INNER Join, creates a Filter 
> with the non-equi conditions on top of the EnumerableHashJoin (created only 
> with the equi-conditions), this filter is not really needed, since now 
> EnumerableHashJoinRule can support the full condition: equi and non-equi 
> items.



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