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https://issues.apache.org/jira/browse/PARQUET-1386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16584745#comment-16584745
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ASF GitHub Bot commented on PARQUET-1386:
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gszadovszky opened a new pull request #515: PARQUET-1386: Fix issues of NaN and
+-0.0 in case of float/double column indexes
URL: https://github.com/apache/parquet-mr/pull/515
Because of the ambigous sorting order of float/double the following changes
were made at building column indexes (write path):
- Not writing column index for a column where any of the min/max values
contain a NaN value.
- Using -0.0 as min value and +0.0 as max value independently from which 0.0
was in the values.
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> Fix issues of NaN and +-0.0 in case of float/double column indexes
> ------------------------------------------------------------------
>
> Key: PARQUET-1386
> URL: https://issues.apache.org/jira/browse/PARQUET-1386
> Project: Parquet
> Issue Type: Sub-task
> Reporter: Gabor Szadovszky
> Assignee: Gabor Szadovszky
> Priority: Major
> Labels: pull-request-available
>
> Workaround the float/double column indexes just like we did for statistics in
> PARQUET-1246.
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