ARROW-10510: [Rust] [DataFusion] Benchmark COUNT(DISTINCT) queries. #8606
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ARROW-10510
This change adds benchmarks for
COUNT(DISTINCT)queries. This is a small follow-up to 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:
The wide benchmark runs ~ 7x slower than the narrow benchmark.