[ARROW-2209] [Python] Partition columns are not correctly loaded in schema of ParquetDataset

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18173
• Assignee: Uwe Korn
• Reporter: Uwe Korn
• Created: 25/Feb/18 17:17
• Updated: 11/Jan/23 07:19
• Resolved: 02/Mar/18 14:33

Description

Currently the partition columns are not included in the schema of a ParquetDataset. We correctly write them out in the _common_metadata file but we fail to load this file correctly.

Issue Links

• relates to: ARROW-2079 [Python][C++] Possibly use `_common_metadata` for schema if `_metadata` isn't available
• links to: GitHub Pull Request #1656