Wes McKinney created PARQUET-1463:
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Summary: [C++] Utilize revamped common hashing machinery for
dictionary encoding
Key: PARQUET-1463
URL: https://issues.apache.org/jira/browse/PARQUET-1463
Project: Parquet
Issue Type: Improvement
Components: parquet-cpp
Reporter: Wes McKinney
Fix For: cpp-1.6.0
[~pitrou] has recently made some significant improvements to hashing /
dictionary encoding machinery in Apache Arrow
https://github.com/apache/arrow/commit/eaf8d32e5f292dca0aa5b5508041d5d39406224d
parquet-cpp is using a custom hash table
https://github.com/apache/arrow/blob/master/cpp/src/parquet/encoding-internal.h#L456
It would be nice to utilize common hash table machinery if possible. We should
of course make sure that such a change does not cause performance regressions
(performance improved due to Antoine's patch, so perf may also get better on
the Parquet write path)
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