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https://issues.apache.org/jira/browse/CALCITE-3535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16989475#comment-16989475
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Ruben Q L commented on CALCITE-3535:
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You're welcome, [~danny0405].
No, the connection-leak issue was actually solved in CALCITE-3546 via its
[PR|https://github.com/apache/calcite/pull/1614]. The "old"
{{EnumerableDefaults#nestedLoopJoin}} (now renamed as {{nestedLoopJoinAsList}})
does not have the issue any more.
> 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: 0.5h
> 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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