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  1. Hive
  2. HIVE-2722

GenericUDFUtils.findText use CharBuffer other than ByteBuffer will be better

    Details

    • Type: Improvement
    • Status: Reopened
    • Priority: 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.

        Attachments

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

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            • Assignee:
              Unassigned
              Reporter:
              caofangkun caofangkun
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