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Posted to dev@hive.apache.org by "N Campbell (JIRA)" <ji...@apache.org> on 2015/04/09 20:12:12 UTC

[jira] [Created] (HIVE-10282) Implement ISO-SQL substring semantics

N Campbell created HIVE-10282:
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             Summary: Implement ISO-SQL substring semantics
                 Key: HIVE-10282
                 URL: https://issues.apache.org/jira/browse/HIVE-10282
             Project: Hive
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 0.13.0
            Reporter: N Campbell
            Priority: Minor


Hive provides SUBSTR which is copying MySQL which does not follow ISO-SQL semantic for a -ve start position. A -ve start is logically to the left of the first character in the string not starting from the end of the string.



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