Hive
  1. Hive
  2. HIVE-2722

GenericUDFUtils.findText use CharBuffer other than ByteBuffer will be better

    Details

    • Type: Improvement Improvement
    • Status: Reopened
    • Priority: Minor Minor
    • Resolution: Unresolved
    • Affects Version/s: 0.8.0, 0.9.0
    • Fix Version/s: None
    • Component/s: UDF
    • Labels:
    • 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

    • Hadoop Flags:
      Reviewed
    • Release Note:
      change ByteBuffer to CharBuffer in GenericUDFUtil.findText

      Description

      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.

      1. udf_instr_1.q
        1 kB
        caofangkun
      2. HIVE-2722.patch
        1 kB
        caofangkun

        Activity

        Hide
        Ashutosh Chauhan added a comment -

        Unlinking from 0.9

        Show
        Ashutosh Chauhan added a comment - Unlinking from 0.9
        Hide
        Ashutosh Chauhan added a comment -

        How is it resolved? Its not committed. Is it a non-issue?

        Show
        Ashutosh Chauhan added a comment - How is it resolved? Its not committed. Is it a non-issue?
        Hide
        caofangkun added a comment -

        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

        Show
        caofangkun added a comment - 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
        Hide
        caofangkun added a comment -

        use CharBuffer

        Show
        caofangkun added a comment - use CharBuffer

          People

          • Assignee:
            Unassigned
            Reporter:
            caofangkun
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              Updated:

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