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https://issues.apache.org/jira/browse/HIVE-541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Min Zhou updated HIVE-541:
--------------------------

    Attachment: HIVE-541.2.patch

Added a GenericUDFUtils.findText() where string encoding and decoding is 
avoided, faster execution will be gained.  

> Implement UDFs: INSTR and LOCATE
> --------------------------------
>
>                 Key: HIVE-541
>                 URL: https://issues.apache.org/jira/browse/HIVE-541
>             Project: Hadoop Hive
>          Issue Type: New Feature
>    Affects Versions: 0.4.0
>            Reporter: Zheng Shao
>            Assignee: Min Zhou
>         Attachments: HIVE-541.1.patch, HIVE-541.2.patch
>
>
> http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_instr
> http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_locate
> These functions can be directly implemented with Text (instead of String). 
> This will make the test of whether one string contains another string much 
> faster.

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