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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2021/10/26 00:30:00 UTC

[jira] [Commented] (ARROW-14464) [R] Change write_parquet()'s default chunk_size from all rows

    [ https://issues.apache.org/jira/browse/ARROW-14464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17434061#comment-17434061 ] 

Neal Richardson commented on ARROW-14464:
-----------------------------------------

Perhaps related (or maybe they just sound similar): ARROW-9293 and ARROW-8470

> [R] Change write_parquet()'s default chunk_size from all rows
> -------------------------------------------------------------
>
>                 Key: ARROW-14464
>                 URL: https://issues.apache.org/jira/browse/ARROW-14464
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: R
>            Reporter: Jonathan Keane
>            Assignee: Jonathan Keane
>            Priority: Major
>
> Currently, when {{chunk_size}} is not given in {{write_parquet()}} it defaults to 1 chunk of all of the rows in the table. This could be fine for smallish numbers of rows, but when we have lots of rows, we want files that contain a decent number of row groups.
> It looks like this was added in https://github.com/apache/arrow/pull/5451 and wasn't discussed there, so this default might not be intentional.



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