Alenka Frim created ARROW-18001:
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Summary: [Python] parquet.write_table/parquet.ParquetWriter should
except a subset of columns
Key: ARROW-18001
URL: https://issues.apache.org/jira/browse/ARROW-18001
Project: Apache Arrow
Issue Type: Improvement
Components: Python
Reporter: Alenka Frim
This question came up in the GitHub issue:
[https://github.com/apache/arrow/issues/14025] and it would be a good
improvement to the Parquet part of PyArrow. Haven't found any existing issue
and so created a new one.
h6. Description:
If a user wants to change a type of one single column when using
{{{}parquet.write_table{}}}/{{{}parquet.ParquetWriter{}}} they currently need
to specify the schema with all columns included. If a column is not specified
in the schema, it will not be included in the parquet file.
h6. Proposal
There should be a possibility for {{parquet.ParquetWriter}} excepting a subset
of columns in a Schema and infer everything else.
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