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https://issues.apache.org/jira/browse/DRILL-7330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17059798#comment-17059798
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ASF GitHub Bot commented on DRILL-7330:
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paul-rogers commented on issue #2026: DRILL-7330: Implement metadata usage for
all format plugins
URL: https://github.com/apache/drill/pull/2026#issuecomment-599258635
@vvysotskyi, I hope the comments more-or-less made sense; I was relearning
this code, and learning the metadata stuff, as I went.
An earlier note mentioned that I'm revising the managed framework. It also
suggested a different way to parse out the implicit columns. To avoid blocking
you, we can use the design here. Then, I'll adjust it as needed to fit the new
classes. (In fact, I've already made some changes based on what I learned
here.)
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> Implement metadata usage for text format plugin
> -----------------------------------------------
>
> Key: DRILL-7330
> URL: https://issues.apache.org/jira/browse/DRILL-7330
> Project: Apache Drill
> Issue Type: Sub-task
> Reporter: Arina Ielchiieva
> Assignee: Vova Vysotskyi
> Priority: Major
> Fix For: 1.18.0
>
>
> 1. Change the current group scan to leverage Schema from Metastore;
> 2. Use stats for enabling additional logical planning rules for text format
> plugin. It will enable such optimizations as limit, filter push and so on.
> + add possibility to pass schema through schema file (using path or table
> root), inline.
> + check for other enhancements in analyze command
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