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https://issues.apache.org/jira/browse/ARROW-1796?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe L. Korn updated ARROW-1796:
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Description: We can build upon the API defined in {{fastparquet}} for
defining RowGroup filters:
https://github.com/dask/fastparquet/blob/master/fastparquet/api.py#L296-L300
and translate them into the C++ enums we will define in
https://issues.apache.org/jira/browse/PARQUET-1158 . This should enable us to
provide the user with a simple predicate pushdown API that we can extend in the
background from RowGroup to Page level later on. (was: We need to translate
the syntax in
https://github.com/dask/fastparquet/blob/master/fastparquet/api.py#L296-L300
into the C++ enums we will define in
https://issues.apache.org/jira/browse/PARQUET-1158)
> Python: RowGroup filtering on file level
> ----------------------------------------
>
> Key: ARROW-1796
> URL: https://issues.apache.org/jira/browse/ARROW-1796
> Project: Apache Arrow
> Issue Type: Improvement
> Reporter: Uwe L. Korn
> Assignee: Uwe L. Korn
> Fix For: 0.8.0
>
>
> We can build upon the API defined in {{fastparquet}} for defining RowGroup
> filters:
> https://github.com/dask/fastparquet/blob/master/fastparquet/api.py#L296-L300
> and translate them into the C++ enums we will define in
> https://issues.apache.org/jira/browse/PARQUET-1158 . This should enable us to
> provide the user with a simple predicate pushdown API that we can extend in
> the background from RowGroup to Page level later on.
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