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  1. MariaDB Server
  2. MDEV-8863

Wrong result for MAX(COALESCE(time_column))

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    • 10.1.8-3

    Description

      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (a TIME);
      INSERT INTO t1 VALUES ('10:20:30'),('10:20:30');
      SELECT MAX(a), MAX(COALESCE(a)) FROM t1;

      returns

      +----------+------------------+
      | MAX(a)   | MAX(COALESCE(a)) |
      +----------+------------------+
      | 10:20:30 | 7594:20:30       |
      +----------+------------------+

      The expected result is to return 10:20:30 for both columns.

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              bar Alexander Barkov
              bar Alexander Barkov
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                Updated:
                Resolved:

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