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Posted to jira@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2021/07/01 18:39:00 UTC
[jira] [Commented] (ARROW-13240) [C++][Parquet] Page statistics not
written in v2?
[ https://issues.apache.org/jira/browse/ARROW-13240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17372994#comment-17372994 ]
Antoine Pitrou commented on ARROW-13240:
----------------------------------------
cc [~emkornfield]
> [C++][Parquet] Page statistics not written in v2?
> -------------------------------------------------
>
> Key: ARROW-13240
> URL: https://issues.apache.org/jira/browse/ARROW-13240
> Project: Apache Arrow
> Issue Type: Bug
> Reporter: Jorge Leitão
> Priority: Minor
>
> While working in integration tests of parquet2 against pyarrow, I noticed that page statistics are only written by pyarrow when using version 1.
> I do not have an easy way to reproduce this within pyarrow as I am not sure how to access individual pages from a column chunk, but it is something that I observe when trying to integrate.
> The row group stats are still written, this only affects page statistics.
> pyarrow call:
> ```
> pa.parquet.write_table(
> t,
> path,
> version="2.0",
> data_page_version="2.0",
> write_statistics=True,
> )
> ```
> changing version to "1.0" does not impact this behavior, suggesting that the specific option causing this behavior is the data_page_version="2.0".
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