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CREATE TABLE t (
a INTEGER,
b BLOB GENERATED ALWAYS AS (a) VIRTUAL,
INDEX (b(57))
)ENGINE=INNODB;
INSERT INTO t (a) VALUES (9);
BEGIN;
SAVEPOINT a;
UPDATE t set a = 12;
DELETE FROM t where a = 12;
ROLLBACK TO SAVEPOINT a;
COMMIT;
CHECK TABLE t;
Table Op Msg_type Msg_text
test.t check status OK
SELECT * FROM t;
a b
9 9
BEGIN;
INSERT INTO t (a) VALUES (10);
SELECT * FROM t;
a b
9 9
DROP TABLE t;
CREATE TABLE t (
a INTEGER,
b BLOB GENERATED ALWAYS AS (a) VIRTUAL,
c INTEGER
)ENGINE=INNODB;
INSERT INTO t (a,c) VALUES (9, 10);
SELECT * FROM t;
a b c
9 9 10
connect con1,localhost,root,,;
connection con1;
SET DEBUG_SYNC = 'row_log_apply_after SIGNAL created WAIT_FOR dml_done';
ALTER TABLE t ADD KEY(b(57)), ALGORITHM=INPLACE;
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR created';
BEGIN;
INSERT INTO t (a,c) VALUES (10, 12);
SELECT * FROM t;
a b c
9 9 10
10 10 12
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL dml_done';
connection con1;
disconnect con1;
connection default;
SELECT * FROM t;
a b c
9 9 10
DROP TABLE t;
CREATE TABLE t (
a INT,
b INT,
c INT GENERATED ALWAYS AS(a+b),
d INT GENERATED ALWAYS AS(a+b+b),
KEY(c, d)
)ENGINE=INNODB;
INSERT INTO t (a,b) VALUES (9, 10);
SELECT * FROM t;
a b c d
9 10 19 29
connect con1,localhost,root,,;
connection con1;
SET DEBUG_SYNC = 'row_log_apply_after SIGNAL created WAIT_FOR dml_done';
ALTER TABLE t DROP COLUMN c, ALGORITHM=INPLACE;
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR created';
BEGIN;
INSERT INTO t (a,b) VALUES (10, 12);
SELECT * FROM t;
a b c d
9 10 19 29
10 12 22 34
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL dml_done';
connection con1;
disconnect con1;
connection default;
SELECT * FROM t;
a b d
9 10 29
DROP TABLE t;
SET DEBUG_SYNC = 'RESET';
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