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https://issues.apache.org/jira/browse/IMPALA-2277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16936937#comment-16936937
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David Mollitor commented on IMPALA-2277:
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At the very least, we need a hash algorithm that overlaps with Impala so that I
can test compatibility between the two products.
I am currently trying to figure out if I can pass a Hive BINARY type as an
IMPALA String Type, but I can't compare the two values without a hash routine
that they both share.
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF
> Investigate alternative hash functions
> --------------------------------------
>
> Key: IMPALA-2277
> URL: https://issues.apache.org/jira/browse/IMPALA-2277
> Project: IMPALA
> Issue Type: Task
> Components: Backend
> Affects Versions: Impala 2.2
> Reporter: Tim Armstrong
> Priority: Minor
>
> Impala currently uses FNV, Murmur2 and CRC hashes in different places
> depending on requirements. There are additional, newer, hash functions
> available including Murmur3, SpookyHash, CityHash, and others that may offer
> benefits.
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