feat(python): add BETWEEN/NOT BETWEEN predicate support - #546
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JingsongLi merged 3 commits intoJul 20, 2026
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July 19, 2026 18:33
The Python dict-format predicate parser now accepts "between" and "notBetween" leaf operators. Each requires exactly two literals (low, high) and delegates to the core PredicateBuilder. This fills the last remaining gap vs the C bindings for comparison-style predicates.
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Purpose
The Python dict-format predicate parser was missing
BETWEENandNOT BETWEENoperators, which are standard SQL comparison operators already supported in the C bindings (paimon_predicate_between/paimon_predicate_not_between) and the corePredicateBuilder. This PR adds them to close the gap.Brief change log
betweenandnotBetweenmatch arms inleaf_to_predicate(), each requiring exactly 2 literals (low, high), delegating toPredicateBuilder::between/not_betweenverification
Tests
cargo check -p pypaimon_rustcargo test -p pypaimon_rust -- predicatecargo clippy --all-targets --workspace --features fulltext,vortex -- -D warningsAPI and Format
Documentation