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https://issues.apache.org/jira/browse/DRILL-7985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17397881#comment-17397881
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ASF GitHub Bot commented on DRILL-7985:
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vvysotskyi commented on pull request #2289:
URL: https://github.com/apache/drill/pull/2289#issuecomment-897397211
Calcite rules for adapters in most of the cases have parts of the logic
related to the storage itself. My idea was to move out this logic from rules to
"implementor", so we will have simple rules that could be reused, and adapters
will provide only the "implementor" that will be responsible for checking
whether the specific pushdown can be done and handling it.
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> Support Mongo aggregate, union, project, limit, sort pushdowns
> --------------------------------------------------------------
>
> Key: DRILL-7985
> URL: https://issues.apache.org/jira/browse/DRILL-7985
> Project: Apache Drill
> Issue Type: New Feature
> Affects Versions: 1.20.0
> Reporter: Vova Vysotskyi
> Assignee: Vova Vysotskyi
> Priority: Major
> Fix For: 1.20.0
>
>
> Add support for more mongo pushdowns:
> - aggregate
> - project (including expressions)
> - limit (including offset)
> - union / union all
> - sort
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