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https://issues.apache.org/jira/browse/ARROW-10574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weiyang Zhao updated ARROW-10574:
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Description:
I would like to enhance partition filters in methods such as:
{{pyarrow.parquet.ParquetDataset(path, filters)}}
I am proposing the below enhancements:
# for operator "in", "not in", the value should be any typing.Iteratable (also
a container). But currently only set is supported while other iteratable, such
as list, tuple cannot function correctly. I would like to change it to accept
any iteratable.
# Enhance the documents about the partition filters.
# Check when no partition can satisfy the filters, raise an exception with
meaningful error message.
I see there is a new version implemented with
_ParquetDatasetV2 which already accepts an iterable. So the documentation
update is fine for the new version as well.
was:
I would like to enhance partition filters in methods such as:
{{pyarrow.parquet.ParquetDataset(path, filters)}}
I am proposing the below enhancements:
# for operator "in", "not in", the value should be any typing.Container. But
currently only set is supported while other containers, such as list, tuple
cannot function correctly. I would like to change it to accept any container.
# Enhance the documents about the partition filters.
# Check when no partition can satisfy the filters, raise an exception with
meaningful error message.
I have already made the changes and test cases locally. Once this is approved,
I can submit it.
Thank you.
> [Python][Parquet] Enhance hive partition filtering
> --------------------------------------------------
>
> Key: ARROW-10574
> URL: https://issues.apache.org/jira/browse/ARROW-10574
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Weiyang Zhao
> Assignee: Weiyang Zhao
> Priority: Major
>
> I would like to enhance partition filters in methods such as:
> {{pyarrow.parquet.ParquetDataset(path, filters)}}
> I am proposing the below enhancements:
> # for operator "in", "not in", the value should be any typing.Iteratable
> (also a container). But currently only set is supported while other
> iteratable, such as list, tuple cannot function correctly. I would like to
> change it to accept any iteratable.
> # Enhance the documents about the partition filters.
> # Check when no partition can satisfy the filters, raise an exception with
> meaningful error message.
> I see there is a new version implemented with
> _ParquetDatasetV2 which already accepts an iterable. So the documentation
> update is fine for the new version as well.
>
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