datafusion-contrib / datafusion-contrib/datafusion-distributed
[Iceberg] Support physical filter pushdown
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- Dominant language
- Rust
- Stars
- 139
- Forks
- 67
- Avg merge
- 3d 1h
- Merged PRs (30d)
- 35
Description
Part of #599.
Allow IcebergDataSource to accept physical filter pushdown. Simple static predicates should be the first target; dynamic filters may need more work.
Essentially, implementing this TODO comment in the code:
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the TODO at iceberg/src/data_source.rs around lines 284-288 and read the surrounding IcebergDataSource implementation. Trace how DataFusion represents physical predicates, beginning with simple static filters; dynamic filters are explicitly a later consideration. Done means IcebergDataSource accepts and applies the intended static filter pushdown, with the relevant test suite passing.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 65/100