datafusion-contrib / datafusion-contrib/liquid-cache
Refactor Parquet reader
Open
Nobody has claimed this yet.
- Dominant language
- Rust
- Stars
- 452
- Forks
- 51
- Avg merge
- 3h 10m
- Merged PRs (30d)
- 12
Description
Currently we hard-code string to be read as Dictionar<UInt16, StringArray>. this is bad, and we need a better engineering parctice and more testing on this
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 by locating the Parquet reader and the hard-coded Dictionary<UInt16, StringArray> handling described in the issue. Review existing reader tests and add coverage that demonstrates the improved type handling; done means the reader no longer relies on that hard-coded string type and the behavior is tested.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- data-engineering
- Issue type
- Refactor
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100