Commits
Daniel Russo authored and Neville Dipale committed eb42c50c482
ARROW-10510: [Rust] [DataFusion] Benchmark COUNT(DISTINCT) queries. [ARROW-10510](https://issues.apache.org/jira/browse/ARROW-10510) This change adds benchmarks for `COUNT(DISTINCT)` queries. This is a small follow-up to [ARROW-10043](https://issues.apache.org/jira/browse/ARROW-10043) / #8222. In that PR, a number of implementation ideas were discussed for follow-ups, and having benchmarks will help evaluate them. --- There are two benchmarks added: * wide: all of the values are distinct; this is looking at worst-case performance * narrow: only a handful of distinct values; this is closer to best-case performance The wide benchmark runs ~ 7x slower than the narrow benchmark. Closes #8606 from drusso/ARROW-10510 Authored-by: Daniel Russo <danrusso@gmail.com> Signed-off-by: Neville Dipale <nevilledips@gmail.com>