Ben Kietzman created ARROW-12892:
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Summary: [C++][Dataset] Remove Dataset::partition_expression
Key: ARROW-12892
URL: https://issues.apache.org/jira/browse/ARROW-12892
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Ben Kietzman
We don't have compelling use cases for this and now that subtree pruning has
been restored in ARROW-8658 it offers no performance advantage over attaching
the common expression to each of the Dataset's Fragments.
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