Hive
  1. Hive
  2. HIVE-4346

when writing data into filesystem from queries ,the output files could contain a line of column names

        Details

        • Type: New Feature New Feature
        • Status: In Progress
        • Priority: Minor Minor
        • Resolution: Unresolved
        • Affects Version/s: None
        • Fix Version/s: None
        • Component/s: Query Processor
        • Labels:
          None

          Description

          For example :
          hive>desc src;
          key string
          value string

          hive>select * from src;
          1 10
          2 20

          hive>set hive.output.markschema=true;
          hive>insert overwrite local directory './test1' select * from src ;
          hive>!ls -l './test1';
          ./test1/_metadata
          ./test1/000000_0

          hive>!cat './test1/_metadata'
          key^Avalue

          hive>!cat './test1/000000_0';
          1^A10
          2^A20

          1. Text File
            HIVE-4346-1.patch
            6 kB
            caofangkun
          2. Text File
            HIVE-4346-3.patch
            8 kB
            caofangkun
          3. Text File
            HIVE-4346-4.patch
            23 kB
            caofangkun

            Issue Links

            is related to

            New Feature - A new feature of the product, which has yet to be developed. HIVE-3682 when output hive table to file,users should could have a separator of their own choice

            • Major - Major loss of function.
            • Closed

              Activity

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              caofangkun added a comment -

              https://reviews.apache.org/r/10474/

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              caofangkun added a comment - https://reviews.apache.org/r/10474/
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              caofangkun added a comment -

              because of HIVE-3682, column names in _metadata should be separated by user defined separator

              Show
              caofangkun added a comment - because of HIVE-3682 , column names in _metadata should be separated by user defined separator
              Hide
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              caofangkun added a comment -

              https://reviews.apache.org/r/10474/

              Could anybody review this patch?

              Show
              caofangkun added a comment - https://reviews.apache.org/r/10474/ Could anybody review this patch?

                People

                • Assignee:
                  caofangkun
                  Reporter:
                  caofangkun
                • Votes:
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                  Dates

                  • Created:
                    Updated:

                    Development