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https://issues.apache.org/jira/browse/PARQUET-41?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15009099#comment-15009099
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Ryan Blue commented on PARQUET-41:
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[~Ferd], I think we need a design doc for this feature and some data about it
before building an implementation. There are still some unknowns that I don't
think we have designed enough. I don't think the current approach that mirrors
ORC is appropriate because we don't know the number of unique values in pages
and the filters are very sensitive to over-filling.
> Add bloom filters to parquet statistics
> ---------------------------------------
>
> Key: PARQUET-41
> URL: https://issues.apache.org/jira/browse/PARQUET-41
> Project: Parquet
> Issue Type: New Feature
> Components: parquet-format, parquet-mr
> Reporter: Alex Levenson
> Assignee: Ferdinand Xu
> Labels: filter2
>
> For row groups with no dictionary, we could still produce a bloom filter.
> This could be very useful in filtering entire row groups.
> Pull request:
> https://github.com/apache/parquet-mr/pull/215
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