apache / apache/datafusion-python
Wire FFI_TableProvider / TableProvider(ABC) through to the Rust TableProvider trait
- Langage dominant
- Python
- Étoiles
- 604
- Forks
- 174
- Merge moyen
- 1 j 7 h
- PR mergées (30 j)
- 4
Description
Split out from #1577 (item 2).
Unlike `CatalogProvider` / `SchemaProvider`, wiring a plain-Python `TableProvider` subclass through to the Rust `TableProvider` trait needs a new `RustWrappedPyTableProvider`, analogous to `RustWrappedPySchemaProvider` in `catalog.rs`. It has to cover `scan()` returning an `ExecutionPlan`, `supports_filters_pushdown`, and statistics.
This is execution-engine work, not a typing-only change, so it doesn't belong in a typing PR. Opening as its own issue so the design (partial pushdown support, how statistics get surfaced to the Python side) can be discussed before someone picks it up.
Guide de contribution
Aucun guide de contribution indexé pour ce dépôt
Piste de recherche
Start by reading catalog.rs, especially RustWrappedPySchemaProvider, and review item 2 from #1577. Trace the TableProvider(ABC) and Rust TableProvider entry points, then clarify how scan(), supports_filters_pushdown, and statistics should cross the boundary. Done means the wrapper and its partial-pushdown and statistics behavior are implemented and agreed.
Rédigé par le modèle d'indexation à partir du texte de l'issue.
Évaluation
- Stack technique
- python, rust
- Domaine
- backend, data-engineering
- Type d'issue
- Fonctionnalité
- Difficulté
- 5/5
- Temps estimé
- Plus d'une semaine
- Activité
- Calme
- Clarté
- Plutôt claire
- Accessibilité débutants
- 35/100