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https://issues.apache.org/jira/browse/ARROW-8060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17056221#comment-17056221
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Ben Kietzman commented on ARROW-8060:
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this should probably wait for ARROW-7878 (and follow-ups) which includes the
replacement for this class
> [Python] Make dataset Expression objects serializable
> -----------------------------------------------------
>
> Key: ARROW-8060
> URL: https://issues.apache.org/jira/browse/ARROW-8060
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Joris Van den Bossche
> Priority: Major
> Fix For: 0.17.0
>
>
> It would be good to be able to pickle pyarrow.dataset.Expression objects (eg
> for use in dask.distributed)
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