[jira] [Commented] (ARROW-16728) [Python] Switch default and deprecate use_legacy_dataset=True in ParquetDataset

["Joris Van den Bossche (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-16728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17600732#comment-17600732 ] 

Joris Van den Bossche commented on ARROW-16728:
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Yes, indeed (but so the two first items together in one release (switching default + deprecating the option, and then only in a later release actually remove the option). 

We should certainly do that first step in 10.0

> [Python] Switch default and deprecate use_legacy_dataset=True in ParquetDataset
> -------------------------------------------------------------------------------
>
>                 Key: ARROW-16728
>                 URL: https://issues.apache.org/jira/browse/ARROW-16728
>             Project: Apache Arrow
>          Issue Type: Sub-task
>          Components: Python
>            Reporter: Joris Van den Bossche
>            Priority: Major
>
> The ParquetDataset() constructor itself still defaults to {{use_legacy_dataset=True}} (although using specific attributes or keywords related to that will raise a warning). So a next step will be to actually deprecate passing that and switching the default, and then only afterwards we can remove the code.



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