[ARROW-5335] [Python] Raise on variable dictionaries when converting to pandas

• Type: Improvement
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/21795
• Assignee: Joris Van den Bossche
• Reporter: Wes McKinney
• Created: 15/May/19 21:20
• Updated: 11/Jan/23 07:39
• Resolved: 24/Jun/19 23:39

Description

Address after ARROW-3144. The current code presumes the dictionary is the same for all chunks. We should check if the dictionary is the same for all chunks, and if not, raise an exception. Dictionary unification will have to occur in a follow up patch

Issue Links

• relates to: ARROW-5717 [Python] Support dictionary unification when converting variable dictionaries to pandas
• links to: GitHub Pull Request #4615