15.2.7.1 INSERT ... SELECT Statement| dev.mysql.com
18.2 The MyISAM Storage Engine| dev.mysql.com
15.2.7 INSERT Statement| dev.mysql.com
15.3.6 LOCK TABLES and UNLOCK TABLES Statements| dev.mysql.com
Table-Level Locking| dev.mysql.com
7.1.8 Server System Variables| dev.mysql.com