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https://issues.apache.org/jira/browse/HIVE-9556?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexander Pivovarov updated HIVE-9556:
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Summary: create UDF to measure strings similarity using Levenshtein
Distance algo (was: create UDF to measure string similarity using Levenshtein
Distance algo)
> create UDF to measure strings similarity using Levenshtein Distance algo
> ------------------------------------------------------------------------
>
> Key: HIVE-9556
> URL: https://issues.apache.org/jira/browse/HIVE-9556
> Project: Hive
> Issue Type: Improvement
> Components: UDF
> Reporter: Alexander Pivovarov
> Assignee: Alexander Pivovarov
>
> algorithm description http://en.wikipedia.org/wiki/Levenshtein_distance
> {code}
> --one edit operation, greatest str len = 12
> str_sim_levenshtein("Test String1", "Test String2") = (12 -1) / 12 =
> 0.9166667f
> {code}
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