MySQLでカラム追加時のOnline DDL
You do need to use no specific statement on MySQL 5.7. If you would use MySQL 5.6, you have to use the statement ALGORITHM=INPLACE, LOCK=NONE for no downtime.
MySQLでカラム追加時のOnline DDL
How
You do need to use no specific statement on MySQL 5.7. If you would use MySQL 5.6, you have to use the statement ALGORITHM=INPLACE, LOCK=NONE for no downtime.
References
MySQL :: MySQL 5.7 Reference Manual :: 14.13.1 Online DDL Operations
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Does adding a non-null default column cause downtime in MySQL 5.7? - Roger Lam