Wes McKinney created ARROW-7596:
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Summary: [Python] Only apply zero-copy DataFrame block
optimizations when split_blocks=True
Key: ARROW-7596
URL: https://issues.apache.org/jira/browse/ARROW-7596
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Wes McKinney
Fix For: 0.16.0
Follow up to ARROW-3789 since there is downstream code that assumes that the
DataFrame produced always has all mutable blocks
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