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https://issues.apache.org/jira/browse/CRUNCH-299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13830085#comment-13830085
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Tom White commented on CRUNCH-299:
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I'm not wild about implementing either of these since they both break
encapsulation, forcing the user to be aware of ColumnRecordFilter and write a
special filter for the case of Parquet. I don't see any better ways at the
moment though.
> Support predicate pushdown for Parquet sources
> ----------------------------------------------
>
> Key: CRUNCH-299
> URL: https://issues.apache.org/jira/browse/CRUNCH-299
> Project: Crunch
> Issue Type: Improvement
> Components: Core
> Reporter: Tom White
> Assignee: Josh Wills
>
> We should be able to push Crunch FilterFn down to a Parquet
> ColumnRecordFilter.
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