[ARROW-3789] [Python] Enable calling object in Table.to_pandas to "self-destruct" for improved memory use

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.16.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/15871
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 14/Nov/18 15:13
• Updated: 11/Jan/23 07:29
• Resolved: 15/Jan/20 00:25

Description

One issue with using Table.to_pandas is that it results in a memory doubling (at least, more if there are a lot of Python objects created). It would be useful if there was an option to destroy the arrow::Column references once they've been transferred into the target data frame. This would render the pyarrow.Table object useless afterward

Issue Links

• links to: GitHub Pull Request #6067