CREATE TABLE t1 (
a int PRIMARY KEY,
b varchar(255)
) ENGINE = NDB;
INSERT INTO t1 VALUES (1, "MySQL Server with NDB");
INSERT INTO t1 (a, b) VALUES (11, "Barrier effect");
INSERT INTO t1 (a, b) VALUES
(12, "The third row"),
(37, "And of course number 37");
SELECT * FROM t1 ORDER BY a;
a	b
1	MySQL Server with NDB
11	Barrier effect
12	The third row
37	And of course number 37
ALTER TABLE t1 ALGORITHM=INPLACE, ADD COLUMN c INT DEFAULT NULL;
Warnings:
Warning	1478	Converted FIXED field 'c' to DYNAMIC to enable online ADD COLUMN
SELECT * FROM t1 ORDER BY a;
a	b	c
1	MySQL Server with NDB	NULL
11	Barrier effect	NULL
12	The third row	NULL
37	And of course number 37	NULL
DROP TABLE t1;