[jira] [Created] (ARROW-8990) [C++] Benchmark hash table against thirdparty options, possibly vendor a thirdparty hash table library

["Wes McKinney (Jira)" <ji...@apache.org>]

Wes McKinney created ARROW-8990:
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             Summary: [C++] Benchmark hash table against thirdparty options, possibly vendor a thirdparty hash table library
                 Key: ARROW-8990
                 URL: https://issues.apache.org/jira/browse/ARROW-8990
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Wes McKinney


While we have our own hash table implementation, it would be worthwhile to set up some benchmarks so that we can compare against std::unordered_map and some other thirdparty libraries for hash tables to know whether we should possibly use a thirdparty library. See e.g.

https://tessil.github.io/2016/08/29/benchmark-hopscotch-map.html



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