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Posted to jira@arrow.apache.org by "Mike Seddon (Jira)" <ji...@apache.org> on 2020/12/06 23:02:00 UTC

[jira] [Commented] (ARROW-10783) [Rust] [DataFusion] Implement row count statistics for Parquet TableProvider

    [ https://issues.apache.org/jira/browse/ARROW-10783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17244868#comment-17244868 ] 

Mike Seddon commented on ARROW-10783:
-------------------------------------

I'd like to have a go at this one - especially after seeing the performance impact of the LEFT/RIGHT table order for HashJoins.

> [Rust] [DataFusion] Implement row count statistics for Parquet TableProvider
> ----------------------------------------------------------------------------
>
>                 Key: ARROW-10783
>                 URL: https://issues.apache.org/jira/browse/ARROW-10783
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Rust - DataFusion
>            Reporter: Andy Grove
>            Assignee: Mike Seddon
>            Priority: Major
>
> Following on from https://issues.apache.org/jira/browse/ARROW-10781 we should implement statistics for Parquet data sources.



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