feat: support datafusion integration#150
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JingsongLi merged 3 commits intoapache:mainfrom Mar 24, 2026
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QuakeWang
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| pub(crate) fn new(schema: ArrowSchemaRef, table: Table) -> Self { | ||
| let plan_properties = PlanProperties::new( | ||
| EquivalenceProperties::new(schema.clone()), | ||
| Partitioning::UnknownPartitioning(1), |
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Is the single-partition execution intentional for the initial version?
PaimonTableScan hardcodes UnknownPartitioning(1), and execute() plans/reads all Paimon splits inside one execution partition. Since the underlying Paimon scan already produces bin-packed splits, this means we lose DataFusion parallelism completely.
Not necessarily a blocker for the first PR, but I think this limitation should be called out explicitly (e.g. a // TODO comment), or followed up by exposing one execution partition per Paimon split.
JingsongLi
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+1 Let's move forward
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Purpose
Linked issue: close #149
Add an initial read-only DataFusion integration for Paimon tables so users can register a Paimon table as a DataFusion
TableProviderand query it with SQL/DataFrame APIs.Brief change log
paimon-datafusionintegration cratePaimonTableProviderand physical scan plan for DataFusionTests
cargo test -p paimon-datafusion --test read_tables --no-runAPI and Format
crates/integrations/datafusionpaimonDocumentation