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https://issues.apache.org/jira/browse/IMPALA-7304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltán Borók-Nagy updated IMPALA-7304:
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Description:
Impala master branch can already write the [Parquet page
index|https://github.com/apache/parquet-format/blob/master/PageIndex.md].
However, we still don't have well-defined ordering for floating-point numbers
in Parquet:
[PARQUET-1222|https://issues-test.apache.org/jira/browse/PARQUET-1222]
Currently impala writes the page index with fmax()/fmin() semantics, but it
might contradicts the future specification that will be defined once
PARQUET-1222 is resolved.
We should not write column indexes for floating-point columns until
PARQUET-1222 is resolved.
was:
Impala master branch can already writes the [Parquet page
index|https://github.com/apache/parquet-format/blob/master/PageIndex.md].
However, we still don't have well-defined ordering for floating-point numbers
in Parquet:
[PARQUET-1222|https://issues-test.apache.org/jira/browse/PARQUET-1222]
Currently impala writes the page index with fmax()/fmin() semantics, but it
might contradicts the future specification that will be defined once
PARQUET-1222 is resolved.
We should not write column indexes for floating-point columns until
PARQUET-1222 is resolved.
> Impala shouldn't write column indexes for float columns until PARQUET-1222 is
> resolved
> --------------------------------------------------------------------------------------
>
> Key: IMPALA-7304
> URL: https://issues.apache.org/jira/browse/IMPALA-7304
> Project: IMPALA
> Issue Type: Bug
> Affects Versions: Impala 2.13.0, Impala 3.1.0
> Reporter: Zoltán Borók-Nagy
> Assignee: Zoltán Borók-Nagy
> Priority: Blocker
>
> Impala master branch can already write the [Parquet page
> index|https://github.com/apache/parquet-format/blob/master/PageIndex.md].
>
> However, we still don't have well-defined ordering for floating-point
> numbers in Parquet:
> [PARQUET-1222|https://issues-test.apache.org/jira/browse/PARQUET-1222]
>
> Currently impala writes the page index with fmax()/fmin() semantics, but it
> might contradicts the future specification that will be defined once
> PARQUET-1222 is resolved.
>
> We should not write column indexes for floating-point columns until
> PARQUET-1222 is resolved.
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