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  1. MariaDB ColumnStore
  2. MCOL-4628

SET double_col=decimal_col returns an error

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    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 5.6.1, 6.1.1
    • Fix Version/s: 6.3.1
    • Component/s: PrimProc
    • Labels:
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      Description

      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (i INT, d DOUBLE) ENGINE=ColumnStore;
      INSERT INTO t1 VALUES (0, 1.5);
      UPDATE t1 SET i=d;
      

      ERROR 1264 (22003): CAL0002: IDB-2025: Data truncated for column 'i'
      

      Looks wrong. It should round double to int without errors, like InnoDB does:

      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (i INT, d DOUBLE) ENGINE=InnoDB;
      INSERT INTO t1 VALUES (0, 1.5);
      UPDATE t1 SET i=d;
      SELECT * FROM t1;
      

      +------+------+
      | i    | d    |
      +------+------+
      |    2 |  1.5 |
      +------+------+
      

      Note, the same problem is also repeatable for the FLOAT data type.

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              Assignee:
              bar Alexander Barkov
              Reporter:
              bar Alexander Barkov
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                Dates

                Created:
                Updated:

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