Joris Van den Bossche created ARROW-5349: --------------------------------------------
Summary: [Python/C++] Provide a way to specify the file path in parquet ColumnChunkMetaData Key: ARROW-5349 URL: https://issues.apache.org/jira/browse/ARROW-5349 Project: Apache Arrow Issue Type: Improvement Components: C++, Python Reporter: Joris Van den Bossche Fix For: 0.14.0 After ARROW-5258 / https://github.com/apache/arrow/pull/4236 it is now possible to collect the file metadata while writing different files (then how to write those metadata was not yet addressed -> original issue ARROW-1983). However, currently, the {{file_path}} information in the ColumnChunkMetaData object is not set. This is, I think, expected / correct for the metadata as included within the single file; but for using the metadata in the combined dataset `_metadata`, it needs a file path set. So if you want to use this metadata for a partitioned dataset, there needs to be a way to specify this file path. Ideas I am thinking of currently: either, we could specify a file path to be used when writing, or expose the `set_file_path` method on the Python side so you can create an updated version of the metadata after collecting it. cc [~pearu] [~mdurant] -- This message was sent by Atlassian JIRA (v7.6.3#76005)