Collect filter selectivity
- Dominant language
- Rust
- Stars
- 3.6k
- Forks
- 1.3k
- Avg merge
- 2d 18h
- Merged PRs (30d)
- 169
Description
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
I would like to collect stats on how selective my filters are for databasey reasons.
**Describe the solution you'd like**
Something like this: https://github.com/coralogix/arrow-rs/blob/53eb05b142df31dfb89b02194f09d78f3f467ca2/parquet/src/arrow/arrow_reader/mod.rs#L640
**Describe alternatives you've considered**
I am open to other options
**Additional context**
Contributor guide
Research direction
Start by reading the linked parquet arrow_reader implementation to understand the selectivity statistics being requested. Then determine the intended API and measurement semantics for arrow-rs; the work is done when a documented approach and agreed validation are available for collecting filter selectivity.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100