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  1. MariaDB Server
  2. MDEV-10182

Bad value when inserting COALESCE(CURRENT_TIMESTAMP) into a DECIMAL column

    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 5.5, 10.0, 10.1, 10.2
    • Fix Version/s: 10.3.0
    • Component/s: Temporal Types
    • Labels:
      None

      Description

      This script:

      SET timestamp=UNIX_TIMESTAMP('2001-01-01 10:20:30.000000');
      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (a DECIMAL(30,0));
      INSERT INTO t1 VALUES (CURRENT_TIMESTAMP(6));
      SELECT * FROM t1;
      

      returns:

      +----------------+
      | a              |
      +----------------+
      | 20010101102030 |
      +----------------+
      

      This is correct.

      Now if I do:

      SET timestamp=UNIX_TIMESTAMP('2001-01-01 10:20:30.000000');
      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (a DECIMAL(30,0));
      INSERT INTO t1 VALUES (COALESCE(CURRENT_TIMESTAMP(6)));
      SELECT * FROM t1;
      

      it generates a warning on INSERT, and returns:

      +------+
      | a    |
      +------+
      | 2001 |
      +------+
      

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              • Assignee:
                bar Alexander Barkov
                Reporter:
                bar Alexander Barkov
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                Dates

                • Created:
                  Updated:
                  Resolved: