[jira] [Updated] (PARQUET-1251) Clarify ambiguous min/max stats for FLOAT/DOUBLE

["Gabor Szadovszky (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PARQUET-1251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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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