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  1. Hadoop Common
  2. HADOOP-1277

The class generated by Hadoop Record rcc should provide a static method to return the DDL string

    Details

    • Type: New Feature
    • Status: Resolved
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: record
    • Labels:
      None

      Description

      The method will look like:

      public static string getDDL();

      With this class, when a map/reduce job write out sequence file swith such a generated class as its value class, the job
      can also save the DDL of the class into a file.

      With such a file around, we can implement a record reader that can generate the required class on demand, thus, can read
      a sequence file of Hadoop Records without having the class a priori.

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            • Assignee:
              Unassigned
              Reporter:
              runping Runping Qi
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              • Created:
                Updated:
                Resolved: