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https://issues.apache.org/jira/browse/HIVE-2722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13187398#comment-13187398
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caofangkun commented on HIVE-2722:
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hive -e "SELECT instr('ab中国c字d', '国') from dual limit 1"
Result : 4
hive -e "select instr('ab中国c字d', '字') from dual limit 1"
Result: 6
> GenericUDFUtils.findText use CharBuffer other than ByteBuffer will be better
> ----------------------------------------------------------------------------
>
> Key: HIVE-2722
> URL: https://issues.apache.org/jira/browse/HIVE-2722
> Project: Hive
> Issue Type: Improvement
> Components: UDF
> Affects Versions: 0.8.0
> Environment: Linux zongren-VirtualBox 3.0.0-14-generic #23-Ubuntu SMP
> Mon Nov 21 20:34:47 UTC 2011 i686 i686 i386 GNU/Linux
> java version "1.6.0_25"
> hadoop-0.20.2-cdh3u0
> hive-0.7.0-cdh3u0
> Reporter: caofangkun
> Priority: Minor
> Labels: udf
> Fix For: 0.9.0
>
> Attachments: HIVE-2722.patch, udf_instr_1.q
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> select instr("中文字符测试-第一行","-") from testTable limit 1;
> result:19 (one Chinese Character was considered as 3 Unicode bits)
> select substr("中文字符测试-第一行",1,2) from testTable limit 1;
> result: "中文" (one Chinese Character was considered as 1 Unicode Unit )
> instr should considered one chinese character as one Unicode Unit too.
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