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https://issues.apache.org/jira/browse/DRILL-5405?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16090669#comment-16090669
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Pritesh Maker commented on DRILL-5405:
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[~arina] should this be resolved now?
> Add missing operator types without dependency on protobuf enum
> --------------------------------------------------------------
>
> Key: DRILL-5405
> URL: https://issues.apache.org/jira/browse/DRILL-5405
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.10.0
> Reporter: Arina Ielchiieva
> Assignee: Arina Ielchiieva
> Priority: Minor
> Attachments: maprdb_sub_scan.JPG, unknown_operator.JPG
>
>
> Source - https://github.com/apache/drill/pull/214#discussion_r42687575
> Some operator types are not added in CoreOperatorType enum.
> For example, FLATTEN, MONGO_SUB_SCAN, MAPRDB_SUB_SCAN. Currently they are
> displayed on Web UI as UNKNOWN_OPERATOR.
> Screenshots:
> now -> unknown_operator.JPG
> should be -> maprdb_sub_scan.JPG
> Though plugins work fine without this changes, it's still would be nice to
> display operator type on Web UI.
> But dependency on protobuf enum removes the ability for format plugins to
> truly be drop-in pluggable.
> In this case as option we may need to refactor this interface to just return
> a String and not use the protobuf enum, or have a separate "notes" field if
> we want to have a generic filescan operator ID in this enum with extra data
> to say what kind of scan we used.
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