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Posted to dev@hive.apache.org by "Janick Bernet (JIRA)" <ji...@apache.org> on 2016/04/11 23:00:27 UTC

[jira] [Created] (HIVE-13482) str_to_map function delimiters are regex

Janick Bernet created HIVE-13482:
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             Summary: str_to_map function delimiters are regex
                 Key: HIVE-13482
                 URL: https://issues.apache.org/jira/browse/HIVE-13482
             Project: Hive
          Issue Type: Improvement
          Components: UDF
    Affects Versions: 1.0.0
            Reporter: Janick Bernet
            Assignee: Jason Dere
            Priority: Minor


The two delimiters passed to the 'str_to_map' function are both interpreted as regular expressions, which means that using the pipe ('|') as a delimiter will lead to very unexpected results.

This behaviour is the same for the closely related 'split' function, however that is clearly documented in the function description (as per https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF). 

Either the documentation for 'str_to_map' should be updated to reflect that the delimiters are both regular expressions, too, or the implementation should be changed to not interpret them as regexes.



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