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  1. MariaDB Server
  2. MDEV-20431

GREATEST(int_col,date_col) returns wrong results in a view

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      Description

      DROP TABLE IF EXISTS t1;
      DROP VIEW IF EXISTS v1;
      CREATE TABLE t1 (pk INT NOT NULL, d DATE NOT NULL);
      CREATE VIEW v1 AS SELECT * FROM t1;
      INSERT INTO t1 VALUES (1,'2018-06-22'),(2,'2018-07-11');
      

      SELECT GREATEST(pk, d) FROM t1;
      

      +-----------------+
      | GREATEST(pk, d) |
      +-----------------+
      | 2018-06-22      |
      | 2018-07-11      |
      +-----------------+
      

      SELECT GREATEST(pk, d) FROM v1;
      

      +-----------------+
      | GREATEST(pk, d) |
      +-----------------+
      | NULL            |
      | NULL            |
      +-----------------+
      

      Looks wrong. Expected to get the same results with the table and with the view.

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              Assignee:
              bar Alexander Barkov
              Reporter:
              bar Alexander Barkov
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                Created:
                Updated:
                Resolved: