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CREATE TABLE t1 (
y YEAR NULL,
i SMALLINT NULL,
c VARCHAR(8) NOT NULL DEFAULT '',
vi SMALLINT AS (i) VIRTUAL,
INDEX(y)
) ENGINE=InnoDB;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`y` year(4) DEFAULT NULL,
`i` smallint(6) DEFAULT NULL,
`c` varchar(8) NOT NULL DEFAULT '',
`vi` smallint(6) GENERATED ALWAYS AS (`i`) VIRTUAL,
KEY `y` (`y`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
SELECT * FROM t1 WHERE y BETWEEN 2012 AND 2016 FOR UPDATE;
y i c vi
INSERT INTO t1 (i) VALUES (1),(2);
SELECT * FROM t1 WHERE y BETWEEN 2012 AND 2016 FOR UPDATE;
y i c vi
DROP TABLE t1;
CREATE TABLE t1 (
y YEAR NULL,
i SMALLINT NULL,
vi SMALLINT AS (i) VIRTUAL,
INDEX(y)
) ENGINE=InnoDB;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`y` year(4) DEFAULT NULL,
`i` smallint(6) DEFAULT NULL,
`vi` smallint(6) GENERATED ALWAYS AS (`i`) VIRTUAL,
KEY `y` (`y`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
SELECT * FROM t1 WHERE y BETWEEN 2012 AND 2016 FOR UPDATE;
y i vi
INSERT INTO t1 (i) VALUES (1),(2);
SELECT * FROM t1 WHERE y BETWEEN 2012 AND 2016 FOR UPDATE;
y i vi
DROP TABLE t1;
CREATE TABLE t1 (
y YEAR NULL,
i SMALLINT NULL,
b BLOB NULL,
vi SMALLINT AS (i) VIRTUAL,
INDEX(y)
) ENGINE=InnoDB;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`y` year(4) DEFAULT NULL,
`i` smallint(6) DEFAULT NULL,
`b` blob DEFAULT NULL,
`vi` smallint(6) GENERATED ALWAYS AS (`i`) VIRTUAL,
KEY `y` (`y`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
SELECT * FROM t1 WHERE y BETWEEN 2012 AND 2016 FOR UPDATE;
y i b vi
INSERT INTO t1 (i) VALUES (1),(2);
SELECT * FROM t1 WHERE y BETWEEN 2012 AND 2016 FOR UPDATE;
y i b vi
DROP TABLE t1;
#
# MDEV-23632 ALTER TABLE...ADD KEY creates corrupted index on virtual column
#
CREATE TABLE t1(a INT PRIMARY KEY, b INT, g INT GENERATED ALWAYS AS(b)VIRTUAL) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1,1,default);
ALTER TABLE t1 ADD COLUMN c INT;
ALTER TABLE t1 ADD KEY(g);
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
SELECT g FROM t1 FORCE INDEX (g);
g
1
DROP TABLE t1;
CREATE TABLE t1(a INT, b INT, g INT GENERATED ALWAYS AS(b)VIRTUAL) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1,1,default);
ALTER TABLE t1 ADD COLUMN c INT PRIMARY KEY;
ALTER TABLE t1 ADD KEY(g);
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
SELECT g FROM t1 FORCE INDEX (g);
g
1
DROP TABLE t1;
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