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Posted to issues@paimon.apache.org by "QuakeWang (via GitHub)" <gi...@apache.org> on 2026/05/31 14:30:04 UTC
[PR] [python][daft] Split conjunctive filters for pushdown [paimon]
QuakeWang opened a new pull request, #8055:
URL: https://github.com/apache/paimon/pull/8055
### Purpose
Daft Paimon filter conversion previously treated each filter expression as all-or-nothing. For an expression like `A AND unsupported(B)`, the supported conjunct `A` was not pushed to Paimon, so it could not participate in scan planning or file skipping.
This PR flattens only `AND` conjuncts in the Daft adapter layer and converts each conjunct independently. Supported conjuncts are combined into a Paimon `AND` predicate, while unsupported conjuncts remain as Daft post-scan filters. `OR` expressions are still pushed only when the whole `OR` is supported.
### Tests
- `python3 -m pytest paimon-python/pypaimon/tests/daft/daft_data_test.py paimon-python/pypaimon/tests/daft/daft_explain_test.py -q`
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Re: [PR] [python][daft] Split conjunctive filters for pushdown [paimon]
Posted by "JingsongLi (via GitHub)" <gi...@apache.org>.
JingsongLi merged PR #8055:
URL: https://github.com/apache/paimon/pull/8055
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Re: [PR] [python][daft] Split conjunctive filters for pushdown [paimon]
Posted by "JingsongLi (via GitHub)" <gi...@apache.org>.
JingsongLi commented on PR #8055:
URL: https://github.com/apache/paimon/pull/8055#issuecomment-4587129334
+1
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Re: [PR] [python][daft] Split conjunctive filters for pushdown [paimon]
Posted by "XiaoHongbo-Hope (via GitHub)" <gi...@apache.org>.
XiaoHongbo-Hope commented on PR #8055:
URL: https://github.com/apache/paimon/pull/8055#issuecomment-4587112914
+1
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