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https://issues.apache.org/jira/browse/PARQUET-36?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14308859#comment-14308859
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Mick Davies commented on PARQUET-36:
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I think a useful extension to predicates if dictionaries are supported is to
add IN and NOT IN. These tests can be expensive if repeated for each row - but
could be evaluated only once for each dictionary element.
> FilteringPrimitiveConverter should support dictionaries
> -------------------------------------------------------
>
> Key: PARQUET-36
> URL: https://issues.apache.org/jira/browse/PARQUET-36
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-mr
> Reporter: Alex Levenson
> Priority: Minor
> Labels: filter2
>
> If the delegated PrimitiveConverter supports dictionaries, then
> FilteringPrimitiveConverter should too.
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