mirror of
https://github.com/percona/percona-toolkit.git
synced 2025-09-10 21:19:59 +00:00
13 lines
758 B
SQL
13 lines
758 B
SQL
mysql> create table test.t1(a int, b int);
|
|
Query OK, 0 rows affected (0.04 sec)
|
|
|
|
mysql> create view test.v1(c, d) as select a+1,b+1 from test.t1;
|
|
Query OK, 0 rows affected (0.00 sec)
|
|
|
|
mysql> explain select c from test.v1;
|
|
+----+-------------+-------+--------+---------------+------+---------+------+------+---------------------+
|
|
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
|
|
+----+-------------+-------+--------+---------------+------+---------+------+------+---------------------+
|
|
| 1 | SIMPLE | t1 | system | NULL | NULL | NULL | NULL | 0 | const row not found |
|
|
+----+-------------+-------+--------+---------------+------+---------+------+------+---------------------+
|