connection node_2;
connection node_1;
CREATE TABLE t (f INT GENERATED ALWAYS AS (a+b)VIRTUAL,a INT,b INT,h BLOB);
INSERT INTO t (a,b)VALUES(0,0), (0,0), (0,0), (0,0), (0,0);
SELECT * from t;
f	a	b	h
0	0	0	NULL
0	0	0	NULL
0	0	0	NULL
0	0	0	NULL
0	0	0	NULL
connection node_2;
SELECT * from t;
f	a	b	h
0	0	0	NULL
0	0	0	NULL
0	0	0	NULL
0	0	0	NULL
0	0	0	NULL
connection node_1;
DROP TABLE t;