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  1. MariaDB ColumnStore
  2. MCOL-4604

CHAR(negativeWideDecimal) not behaving as InnoDB

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 6.1.1
    • Fix Version/s: 6.1.1
    • Component/s: PrimProc
    • Labels:
      None
    • Sprint:
      2021-5

      Description

      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (a DECIMAL(30,0)) ENGINE=ColumnStore;
      INSERT INTO t1 VALUES (-1);
      SELECT HEX(CHAR(a USING latin1)) FROM t1;
      

      +---------------------------+
      | HEX(CHAR(a USING latin1)) |
      +---------------------------+
      | NULL                      |
      +---------------------------+
      

      Looks wrong. The expected result is:

      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (a DECIMAL(30,0)) ENGINE=InnoDB;
      INSERT INTO t1 VALUES (-1);
      SELECT HEX(CHAR(a USING latin1)) FROM t1;
      

      +---------------------------+
      | HEX(CHAR(a USING latin1)) |
      +---------------------------+
      | FFFFFFFF                  |
      +---------------------------+
      

      Note, negative narrow decimals do not have this problem and work as expected:

      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (a DECIMAL(10,0)) ENGINE=ColumnStore;
      INSERT INTO t1 VALUES (-1);
      SELECT HEX(CHAR(a USING latin1)) FROM t1;
      

      +---------------------------+
      | HEX(CHAR(a USING latin1)) |
      +---------------------------+
      | FFFFFFFF                  |
      +---------------------------+
      

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              Assignee:
              bar Alexander Barkov
              Reporter:
              bar Alexander Barkov
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                Dates

                Created:
                Updated:
                Resolved:

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