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https://issues.apache.org/jira/browse/PARQUET-1251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabor Szadovszky updated PARQUET-1251:
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Summary: Clarify ambiguous min/max stats for FLOAT/DOUBLE (was: Describe
handling of the ambigous min/max statistics for FLOAT/DOUBLE)
> Clarify ambiguous min/max stats for FLOAT/DOUBLE
> ------------------------------------------------
>
> Key: PARQUET-1251
> URL: https://issues.apache.org/jira/browse/PARQUET-1251
> Project: Parquet
> Issue Type: Bug
> Components: parquet-format
> Affects Versions: format-2.4.0
> Reporter: Gabor Szadovszky
> Assignee: Gabor Szadovszky
> Priority: Major
>
> Describe the handling of the ambigous min/max statistics for FLOAT/DOUBLE
> types in case of TypeDefinedOrder. (See PARQUET-1222 for details.)
> * When looking for NaN values, min and max should be ignored.
> * If the min is a NaN, it should be ignored.
> * If the max is a NaN, it should be ignored.
> * If the min is +0, the row group may contain -0 values as well.
> * If the max is -0, the row group may contain +0 values as well.
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