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  1. MariaDB Server
  2. MDEV-12831

CREATE TABLE t1 (<defs>) SELECT... does not preserve new CHECK constraint

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      DROP TABLE IF EXISTS t1,t2;
      CREATE TABLE t1 (a INT CHECK(a=1));
      CREATE TABLE t2 (a INT CHECK(a=2)) AS SELECT * FROM t1;
      SHOW CREATE TABLE t2;
      

      +-------+-------------------------------------------------------------------------------------------------------+
      | Table | Create Table                                                                                          |
      +-------+-------------------------------------------------------------------------------------------------------+
      | t2    | CREATE TABLE `t2` (
        `a` int(11) DEFAULT NULL CHECK (`a` = 1)
      ) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
      +-------+-------------------------------------------------------------------------------------------------------+
      

      The expected CHECK clause for t2.a should be a=2 rather a=1.

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              • Assignee:
                monty Michael Widenius
                Reporter:
                bar Alexander Barkov
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                • Created:
                  Updated: