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  1. MariaDB Server
  2. MDEV-11269

In NO_ZERO_DATE mode, multiple timestamp fields with no default can't be created

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      MariaDB [test]> set sql_mode='';
      Query OK, 0 rows affected (0.00 sec)
       
      MariaDB [test]> create table t1(a timestamp, b timestamp);
      Query OK, 0 rows affected (0.11 sec)
       
      MariaDB [test]> set sql_mode = 'NO_ZERO_DATE';
      Query OK, 0 rows affected (0.00 sec)
       
      MariaDB [test]> create table t2(a timestamp, b timestamp);
      ERROR 1067 (42000): Invalid default value for 'b'
       
      MariaDB [test]> create table t2(a timestamp, b int, c timestamp);
      ERROR 1067 (42000): Invalid default value for 'c'
       
      MariaDB [test]> create table t2(a timestamp);
      Query OK, 0 rows affected (0.07 sec)
      

      Index creation is affected as well.

      MariaDB [test]> set sql_mode='';
      Query OK, 0 rows affected (0.00 sec)
       
      MariaDB [test]> create table t1(a timestamp, b timestamp);
      Query OK, 0 rows affected (0.06 sec)
       
      MariaDB [test]> set sql_mode='NO_ZERO_DATE';
      Query OK, 0 rows affected (0.00 sec)
       
      MariaDB [test]> create index idx on t1(a);
      ERROR 1067 (42000): Invalid default value for 'b'
       
      MariaDB [test]> set sql_mode='NO_ZERO_DATE,STRICT_TRANS_TABLES';
      Query OK, 0 rows affected (0.01 sec)
       
      MariaDB [test]> create index idx on t1(a);
      ERROR 1292 (22007): Incorrect datetime value: '0000-00-00 00:00:00' for column 'b' at row 1
      

      Also, it seems impossible to use current_timestamp in CREATE TABLE .. ON UPDATE.

      MariaDB [test]> set sql_mode = 'NO_ZERO_DATE';
      Query OK, 0 rows affected (0.00 sec)
       
      MariaDB [test]> create table t1 (a timestamp(5) on update current_timestamp(5));
      ERROR 1067 (42000): Invalid default value for 'a'
       
      MariaDB [test]> create table t1 (a timestamp(5) on update current_timestamp(4));
      ERROR 1294 (HY000): Invalid ON UPDATE clause for 'a' column
       
      MariaDB [test]> create table t1 (a timestamp(5) on update current_timestamp(6));
      ERROR 1067 (42000): Invalid default value for 'a'
       
      MariaDB [test]> create table t1 (a timestamp on update current_timestamp);
      ERROR 1067 (42000): Invalid default value for 'a'
      

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              Assignee:
              Unassigned
              Reporter:
              nirbhay_c Nirbhay Choubey (Inactive)
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                Updated:
                Resolved: