CALL mtr.add_suppression("Incorrect information in file");
SET @@session.default_storage_engine = 'MyISAM';
#
# Section 1. Wrong column definition options
#            - DEFAULT <value>
#            - AUTO_INCREMENT
#            - SERIAL DEFAULT VALUE
#            - ON UPDATE NOW ...
# NOT NULL
create table t1 (a int, b int generated always as (a+1) virtual not null);
insert into t1(a) values(null);
ERROR 23000: Column 'b' cannot be null
insert into t1(a) values(1);
select * from t1;
a	b
1	2
drop table t1;
create table t1 (a int, b int generated always as (a+1) stored not null);
insert into t1(a) values(null);
ERROR 23000: Column 'b' cannot be null
insert into t1(a) values(1);
select * from t1;
a	b
1	2
drop table t1;
create table t1 (a int);
alter table t1 add column b int generated always as (a+1) virtual not null;
drop table t1;
# NULL  
create table t1 (a int, b int generated always as (a+1) virtual null);
drop table t1;
create table t1 (a int);
alter table t1 add column b int generated always as (a+1) virtual null;
drop table t1;
# Added columns mixed with virtual GC and other columns
create table t1 (a int);
insert into t1 values(1);
alter table t1 add column (b int generated always as (a+1) virtual, c int);
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
alter table t1 add column (d int, e int generated always as (a+1) virtual);
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
alter table t1 add column (f int generated always as (a+1) virtual, g int as(5) stored);
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
alter table t1 add column (h int generated always as (a+1) virtual, i int as(5) virtual);
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
drop table t1;
# DEFAULT
create table t1 (a int, b int generated always as (a+1) virtual default 0);
ERROR HY000: Incorrect usage of DEFAULT and generated column
create table t1 (a int);
alter table t1 add column b int generated always as (a+1) virtual default 0;
ERROR HY000: Incorrect usage of DEFAULT and generated column
drop table t1;
# AUTO_INCREMENT
create table t1 (a int, b int generated always as (a+1) virtual AUTO_INCREMENT);
ERROR HY000: Incorrect usage of AUTO_INCREMENT and generated column
create table t1 (a int);
alter table t1 add column b int generated always as (a+1) virtual AUTO_INCREMENT;
ERROR HY000: Incorrect usage of AUTO_INCREMENT and generated column
drop table t1;
# SERIAL DEFAULT VALUE
create table t1 (a int, b int generated always as (a+1) virtual SERIAL DEFAULT VALUE);
ERROR HY000: Incorrect usage of SERIAL DEFAULT VALUE and generated column
create table t1 (a int);
alter table t1 add column b int generated always as (a+1) virtual SERIAL DEFAULT VALUE;
ERROR HY000: Incorrect usage of SERIAL DEFAULT VALUE and generated column
drop table t1;
# ON UPDATE
create table t1 (a int, b int generated always as (a+1) virtual ON UPDATE NOW());
ERROR HY000: Incorrect usage of ON UPDATE and generated column
create table t1 (a int);
alter table t1 add column b int generated always as (a+1) virtual ON UPDATE NOW();
ERROR HY000: Incorrect usage of ON UPDATE and generated column
drop table t1;
# [PRIMARY] KEY
create table t1 (a int, b int generated always as (a+1) stored key);
insert into t1 (a) values (3),(1),(2);
select * from t1;
a	b
1	2
2	3
3	4
drop table t1;
create table t1 (a int, b int generated always as (a+1) stored primary key);
insert into t1 (a) values (3),(1),(2);
select * from t1 order by b;
a	b
1	2
2	3
3	4
drop table t1;
create table t1 (a int);
alter table t1 add column b int generated always as (a+1) stored key;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` + 1)) STORED NOT NULL,
  PRIMARY KEY (`b`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
alter table t1 add column c int generated always as (a+2) stored primary key;
ERROR 42000: Multiple primary key defined
drop table t1;
# Section 2. Other column definition options
#            - COMMENT
#            - REFERENCES (only syntax testing here)
#            - STORED (only systax testing here)
create table t1 (a int, b int generated always as (a % 2) virtual comment 'my comment');
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) VIRTUAL COMMENT 'my comment'
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
describe t1;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	int	YES		NULL	VIRTUAL GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a % 2) virtual);
alter table t1 modify b int generated always as (a % 2) virtual comment 'my comment';
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) VIRTUAL COMMENT 'my comment'
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
describe t1;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	int	YES		NULL	VIRTUAL GENERATED
insert into t1 (a) values (1);
select * from t1;
a	b
1	1
insert into t1 values (2,default);
select a,b from t1 order by a;
a	b
1	1
2	0
create table t2 like t1;
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) VIRTUAL COMMENT 'my comment'
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
describe t2;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	int	YES		NULL	VIRTUAL GENERATED
insert into t2 (a) values (1);
select * from t2;
a	b
1	1
insert into t2 values (2,default);
select a,b from t2 order by a;
a	b
1	1
2	0
drop table t2;
drop table t1;
create table t1 (a int, b int generated always as (a % 2) stored);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) STORED
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
describe t1;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	int	YES		NULL	STORED GENERATED
insert into t1 (a) values (1);
select * from t1;
a	b
1	1
insert into t1 values (2,default);
select a,b from t1 order by a;
a	b
1	1
2	0
drop table t1;
create table t2 (a int);
create table t1 (a int, b int generated always as (a % 2) stored references t2(a));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) STORED
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
drop table t1;
create table t1 (a int, b int generated always as (a % 2) virtual);
alter table t1 modify b int generated always as (a % 2) stored references t2(a);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'references t2(a)' at line 1
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
drop table t1;
drop table t2;
FK options
create table t1(a int,  b int as (a % 2), c int as (a) stored);
create table t2 (a int primary key);
alter table t1 add constraint foreign key fk(d) references t2(a);
ERROR 42000: Key column 'd' doesn't exist in table
alter table t1 add constraint foreign key fk(c) references t2(a) on delete set null;
ERROR HY000: Cannot define foreign key with ON DELETE SET NULL clause on a generated column.
alter table t1 add constraint foreign key fk(c) references t2(a) on update set null;
ERROR HY000: Cannot define foreign key with ON UPDATE SET NULL clause on a generated column.
alter table t1 add constraint foreign key fk(c) references t2(a) on update cascade;
ERROR HY000: Cannot define foreign key with ON UPDATE CASCADE clause on a generated column.
drop table t1;
drop table t2;
Generated alwasy is optional
create table t1 (a int, b int as (a % 2) virtual);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
describe t1;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	int	YES		NULL	VIRTUAL GENERATED
drop table t1;
create table t1 (a int, b int as (a % 2) stored);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) STORED
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
describe t1;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	int	YES		NULL	STORED GENERATED
drop table t1;
Default should be non-stored column
create table t1 (a int, b int as (a % 2));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` % 2)) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
describe t1;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	int	YES		NULL	VIRTUAL GENERATED
drop table t1;
Expression can be constant 
create table t1 (a int, b int as (5 * 2));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((5 * 2)) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
describe t1;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	int	YES		NULL	VIRTUAL GENERATED
drop table t1;
Test generated columns referencing other generated columns
create table t1 (a int unique, b int generated always as(-a) virtual, c int generated always as (b + 1) virtual);
insert into t1 (a) values (1), (2);
select * from t1;
a	b	c
1	-1	0
2	-2	-1
insert into t1(a) values (1) on duplicate key update a=3;
select * from t1;
a	b	c
2	-2	-1
3	-3	-2
update t1 set a=4 where a=2;
select * from t1;
a	b	c
3	-3	-2
4	-4	-3
drop table t1;
create table t1 (a int, b int generated always as(-b) virtual, c int generated always as (b + 1) virtual);
ERROR HY000: Generated column can refer only to generated columns defined prior to it.
create table t1 (a int, b int generated always as(-c) virtual, c int generated always as (b + 1) virtual);
ERROR HY000: Generated column can refer only to generated columns defined prior to it.
CREATE TABLE t1 (pk INTEGER AUTO_INCREMENT, col_int_nokey INTEGER GENERATED ALWAYS AS (pk + col_int_key) STORED, col_int_key INTEGER, PRIMARY KEY (pk));
ERROR HY000: Generated column 'col_int_nokey' cannot refer to auto-increment column.
# Bug#20339347: FAIL TO USE CREATE ....SELECT STATEMENT TO CREATE A NEW TABLE
create table t1 (a int, b int generated always as(-a) virtual, c int generated always as (b + 1) stored);
insert into t1(a) values(1),(2);
create table tt as select * from t1;
select * from t1 order by a;
a	b	c
1	-1	0
2	-2	-1
select * from tt order by a;
a	b	c
1	-1	0
2	-2	-1
drop table t1,tt;
# Bug#20769299: INCORRECT KEY ERROR WHEN TRYING TO CREATE INDEX ON
#               VIRTUAL GC FOR MYISAM
CREATE TABLE A (
pk INTEGER AUTO_INCREMENT,
col_int_nokey INTEGER,
col_int_key INTEGER GENERATED ALWAYS AS (pk + col_int_nokey) VIRTUAL, KEY
(col_int_key));
ERROR HY000: Table storage engine 'MyISAM' does not support the create option 'Index on virtual generated column'
# Bug#20745142: GENERATED COLUMNS: ASSERTION FAILED:
#   THD->CHANGE_LIST.IS_EMPTY()
#
CREATE TABLE t1(a bigint AS (a between 1 and 1));
ERROR HY000: Generated column can refer only to generated columns defined prior to it.
# Bug#20757211: GENERATED COLUMNS: ALTER TABLE CRASHES
#  IN FIND_FIELD_IN_TABLE
#
CREATE TABLE t1(a int);
ALTER TABLE t1 ADD COLUMN z int GENERATED ALWAYS AS
( 1 NOT IN (SELECT 1 FROM t1 WHERE c0006) ) virtual;
ERROR HY000: Expression of generated column 'z' contains a disallowed function.
DROP TABLE t1;
# Bug#20566243: ERROR WHILE DOING CREATE TABLE T1 SELECT (QUERY ON GC COLUMNS)
CREATE TABLE t1(a int, b int as (a + 1),
c varchar(12) as ("aaaabb") stored, d blob as (c));
INSERT INTO t1(a) VALUES(1),(3);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` + 1)) VIRTUAL,
  `c` varchar(12) GENERATED ALWAYS AS (_utf8mb4'aaaabb') STORED,
  `d` blob GENERATED ALWAYS AS (`c`) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SELECT * FROM t1 order by a;
a	b	c	d
1	2	aaaabb	aaaabb
3	4	aaaabb	aaaabb
CREATE TABLE t2 LIKE t1;
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `a` int DEFAULT NULL,
  `b` int GENERATED ALWAYS AS ((`a` + 1)) VIRTUAL,
  `c` varchar(12) GENERATED ALWAYS AS (_utf8mb4'aaaabb') STORED,
  `d` blob GENERATED ALWAYS AS (`c`) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
CREATE TABLE t3 AS SELECT * FROM t1;
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `a` int DEFAULT NULL,
  `b` int DEFAULT NULL,
  `c` varchar(12) DEFAULT NULL,
  `d` blob
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SELECT * FROM t3 order by a;
a	b	c	d
1	2	aaaabb	aaaabb
3	4	aaaabb	aaaabb
CREATE TABLE t4 AS SELECT b,c,d FROM t1;
SHOW CREATE TABLE t4;
Table	Create Table
t4	CREATE TABLE `t4` (
  `b` int DEFAULT NULL,
  `c` varchar(12) DEFAULT NULL,
  `d` blob
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SELECT * FROM t4 order by b;
b	c	d
2	aaaabb	aaaabb
4	aaaabb	aaaabb
DROP TABLE t1,t2,t3,t4;
# Bug#21025003:WL8149:ASSERTION `CTX->NUM_TO_DROP_FK
#  == HA_ALTER_INFO->ALTER_INFO-> FAILED
#
CREATE TABLE t1 (
col1 int(11) DEFAULT NULL,
col2 int(11) DEFAULT NULL,
col3 int(11) DEFAULT NULL,
col4 int(11) DEFAULT NULL,
col5 int(11) GENERATED ALWAYS AS (col4 / col2) VIRTUAL,
col6 text
);
Warnings:
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
INSERT INTO t1(col1,col2,col3,col4,col6) VALUES(NULL,1,4,0,REPEAT(2,1000));
ALTER TABLE t1 DROP PRIMARY KEY , ADD KEY idx ( col5, col2 );
ERROR 42000: Can't DROP 'PRIMARY'; check that column/key exists
DROP TABLE t1;
# Bug#20949226:i CAN ASSIGN NON-DEFAULT() VALUE TO GENERATED COLUMN
# 
CREATE TABLE t1 (c1 INT, c2 INT AS (c1 * 2)) SELECT 1 AS c1, 5 AS c2;
ERROR HY000: The value specified for generated column 'c2' in table 't1' is not allowed.
CREATE TABLE t2 (a int);
INSERT INTO t2 values(1);
CREATE TABLE t1 (c1 INT, c2 INT AS (c1 * 2)) SELECT 1 AS c1, a AS c2 from t2;
ERROR HY000: The value specified for generated column 'c2' in table 't1' is not allowed.
CREATE TABLE t1 (c1 INT, c2 INT AS (c1 * 2)) SELECT 1 AS c1, 5;
SELECT * FROM t1;
c2	c1	5
2	1	5
DROP TABLE t1, t2;
# Bug#20757211: GENERATED COLUMNS: ALTER TABLE CRASHES
#  IN FIND_FIELD_IN_TABLE
# 
CREATE TABLE t1(a int);
ALTER TABLE t1 ADD COLUMN z int GENERATED ALWAYS AS
( 1 NOT IN (SELECT 1 FROM t1 WHERE c0006) ) virtual;
ERROR HY000: Expression of generated column 'z' contains a disallowed function.
CREATE TABLE t2(a int, b int as (1 NOT IN (SELECT 1 FROM t1 WHERE not_exist_col)));
ERROR HY000: Expression of generated column 'b' contains a disallowed function.
CREATE TABLE t2(a int, b int as (1 NOT IN (SELECT 1 FROM dual)));
ERROR HY000: Expression of generated column 'b' contains a disallowed function.
DROP TABLE t1;
# Bug#21142905: PARTITIONED GENERATED COLS -
#  !TABLE || (!TABLE->WRITE_SET || BITMAP_IS_SET
# 
"Skipped since this engine does not support native partitioning.
# Bug #20709487: COLLATE OPTION NOT ACCEPTED IN GENERATED COLUMN
#                DEFINITION
#
# Check for a valid syntax:
CREATE TABLE t1 (c CHAR(10) CHARACTER SET utf8 COLLATE utf8_bin GENERATED ALWAYS AS ("foo bar"));
Warnings:
Warning	3719	'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
Warning	3778	'utf8mb3_bin' is a collation of the deprecated character set UTF8MB3. Please consider using UTF8MB4 with an appropriate collation instead.
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c` char(10) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin GENERATED ALWAYS AS (_utf8mb4'foo bar') VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t1;
CREATE TABLE t1 (i INT);
ALTER TABLE t1 ADD COLUMN c CHAR(10) CHARACTER SET utf8 COLLATE utf8_bin GENERATED ALWAYS AS ("foo bar");
Warnings:
Warning	3719	'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
Warning	3778	'utf8mb3_bin' is a collation of the deprecated character set UTF8MB3. Please consider using UTF8MB4 with an appropriate collation instead.
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int DEFAULT NULL,
  `c` char(10) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin GENERATED ALWAYS AS (_utf8mb4'foo bar') VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t1;
CREATE TABLE t1 (i INT COLLATE utf8_bin, c INT COLLATE utf8_bin GENERATED ALWAYS AS (10));
Warnings:
Warning	3778	'utf8mb3_bin' is a collation of the deprecated character set UTF8MB3. Please consider using UTF8MB4 with an appropriate collation instead.
Warning	3778	'utf8mb3_bin' is a collation of the deprecated character set UTF8MB3. Please consider using UTF8MB4 with an appropriate collation instead.
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int DEFAULT NULL,
  `c` int GENERATED ALWAYS AS (10) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t1;
# Check for a charset mismatch processing:
CREATE TABLE t1 (t CHAR(10) CHARACTER SET utf8 COLLATE ascii_bin GENERATED ALWAYS AS ("foo bar"));
ERROR 42000: COLLATION 'ascii_bin' is not valid for CHARACTER SET 'utf8mb3'
# Check for a sorting order support:
CREATE TABLE t1 (c CHAR(10) CHARSET latin1 COLLATE latin1_bin,
c_ci CHAR(10) CHARSET latin1 COLLATE latin1_general_ci GENERATED ALWAYS AS (c),
c_cs CHAR(10) CHARSET latin1 COLLATE latin1_general_cs GENERATED ALWAYS AS (c));
INSERT INTO t1 (c) VALUES ('a'), ('A'), ('b');
SELECT * FROM t1 ORDER BY c;
c	c_ci	c_cs
A	A	A
a	a	a
b	b	b
SELECT * FROM t1 ORDER BY c_ci, c;
c	c_ci	c_cs
A	A	A
a	a	a
b	b	b
SELECT * FROM t1 ORDER BY c_cs;
c	c_ci	c_cs
A	A	A
a	a	a
b	b	b
SELECT c, c_ci REGEXP 'A', c_cs REGEXP 'A' FROM t1;
c	c_ci REGEXP 'A'	c_cs REGEXP 'A'
A	1	1
a	1	0
b	0	0
DROP TABLE t1;
# Bug #21469535: VALGRIND ERROR (CONDITIONAL JUMP) WHEN INSERT
#                ROWS INTO A PARTITIONED TABLE
#
"Skipped since this engine does not support native partitioning.
# Bug#21465626:ASSERT/CRASH ON DROPPING/ADDING VIRTUAL COLUMN
CREATE TABLE t (a int(11), b int(11),
c int(11) GENERATED ALWAYS AS (a+b) VIRTUAL,
d int(11) GENERATED ALWAYS AS (a+b) VIRTUAL);
Warnings:
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
INSERT INTO t(a,b) VALUES(1,2);
# Mixed drop/add/rename virtual with non-virtual columns,
# ALGORITHM=INPLACE is not supported for InnoDB
ALTER TABLE t DROP d, ADD e varchar(10);
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
ALTER TABLE t ADD d int, ADD f char(10) AS ('aaa');
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
ALTER TABLE t CHANGE d dd int, CHANGE f ff varchar(10) AS ('bbb');
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
# Only drop/add/change virtual, inplace is supported for Innodb
ALTER TABLE t DROP c, DROP ff;
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
ALTER TABLE t ADD c int(11) as (a+b), ADD f varchar(10) as ('aaa');
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 1
Warnings:
Warning	1681	Integer display width is deprecated and will be removed in a future release.
ALTER TABLE t CHANGE c c int(11) as (a), CHANGE f f varchar(10) as('bbb');
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 1
Warnings:
Warning	1681	Integer display width is deprecated and will be removed in a future release.
# Change order should be ALGORITHM=INPLACE on Innodb
ALTER TABLE t CHANGE c c int(11) as (a) after f;
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 1
Warnings:
Warning	1681	Integer display width is deprecated and will be removed in a future release.
ALTER TABLE t CHANGE b b int(11) after c;
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 1
Warnings:
Warning	1681	Integer display width is deprecated and will be removed in a future release.
# TODO: Changing virtual column type should be ALGORITHM=INPLACE on InnoDB, current it goes only with COPY method
ALTER TABLE t CHANGE c c varchar(10) as ('a');
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
# Changing stored column type is ALGORITHM=COPY
ALTER TABLE t CHANGE dd d varchar(10);
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
DROP TABLE t;
#
# Bug#21900170: CAN'T CREATE TABLE WITH NULLABLE GENERATED COLUMNS
#
CREATE TABLE t1 (
a INT,
b INT GENERATED ALWAYS AS (-a) VIRTUAL NULL,
c INT GENERATED ALWAYS AS (a + b) STORED NULL);
SHOW FULL COLUMNS FROM t1;
Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
a	int	NULL	YES		NULL		#	
b	int	NULL	YES		NULL	VIRTUAL GENERATED	#	
c	int	NULL	YES		NULL	STORED GENERATED	#	
INSERT INTO t1 (a) VALUES (NULL), (1);
SELECT * FROM t1;
a	b	c
1	-1	0
NULL	NULL	NULL
DROP TABLE t1;
# Bug#21854004: GCOLS:INNODB: FAILING ASSERTION: I < TABLE->N_DEF
CREATE TABLE t1(
col1 INTEGER PRIMARY KEY,
col2 INTEGER,
col3 INTEGER,
col4 INTEGER,
vgc1 INTEGER AS (col2 + col3) VIRTUAL,
sgc1 INTEGER AS (col2 - col3) STORED
);
INSERT INTO t1(col1, col2, col3) VALUES
(1, 10, 100), (2, 20, 200);
SELECT * FROM t1 order by col1;
col1	col2	col3	col4	vgc1	sgc1
1	10	100	NULL	110	-90
2	20	200	NULL	220	-180
ALTER TABLE t1 MODIFY COLUMN vgc1 INTEGER AS (col2 * col3) VIRTUAL;
SELECT * FROM t1 order by col1;
col1	col2	col3	col4	vgc1	sgc1
1	10	100	NULL	1000	-90
2	20	200	NULL	4000	-180
ALTER TABLE t1 MODIFY COLUMN sgc1 INTEGER AS (col2 / col3) STORED;
SELECT * FROM t1 order by col1;
col1	col2	col3	col4	vgc1	sgc1
1	10	100	NULL	1000	0
2	20	200	NULL	4000	0
ALTER TABLE t1 MODIFY COLUMN vgc1 INTEGER AS (col2 + col3) VIRTUAL;
ALTER TABLE t1 MODIFY COLUMN sgc1 INTEGER AS (col2 - col3) STORED;
ALTER TABLE t1 ADD INDEX sgc1 (sgc1);
ALTER TABLE t1 MODIFY COLUMN sgc1 INTEGER AS (col2 / col3) STORED;
SELECT * FROM t1 order by col1;
col1	col2	col3	col4	vgc1	sgc1
1	10	100	NULL	110	0
2	20	200	NULL	220	0
SELECT sgc1 FROM t1 order by sgc1;
sgc1
0
0
ALTER TABLE t1 DROP INDEX sgc1;
ALTER TABLE t1 MODIFY COLUMN sgc1 INTEGER AS (col2 - col3) STORED;
ALTER TABLE t1 ADD UNIQUE INDEX sgc1 (sgc1);
ALTER TABLE t1 MODIFY COLUMN sgc1 INTEGER AS (col2 / col3) STORED;
ERROR 23000: Duplicate entry '0' for key 't1.sgc1'
ALTER TABLE t1 MODIFY COLUMN vgc1 INTEGER AS (col2 * col3) VIRTUAL;
SELECT * FROM t1 order by col1;
col1	col2	col3	col4	vgc1	sgc1
1	10	100	NULL	1000	-90
2	20	200	NULL	4000	-180
SELECT vgc1 FROM t1 order by col1;
vgc1
1000
4000
ALTER TABLE t1 MODIFY COLUMN sgc1 INTEGER AS (col2 * col3) STORED;
SELECT * FROM t1 order by col1;
col1	col2	col3	col4	vgc1	sgc1
1	10	100	NULL	1000	1000
2	20	200	NULL	4000	4000
SELECT sgc1 FROM t1 order by sgc1;
sgc1
1000
4000
ALTER TABLE t1 MODIFY COLUMN vgc1 INTEGER AS (col2 * col3) STORED;
ERROR HY000: 'Changing the STORED status' is not supported for generated columns.
ALTER TABLE t1 MODIFY COLUMN sgc1 INTEGER AS (col2 / col3) VIRTUAL;
ERROR HY000: 'Changing the STORED status' is not supported for generated columns.
ALTER TABLE t1 MODIFY COLUMN col4 INTEGER AS (col1 + col2 + col3) STORED;
SELECT * FROM t1 order by col1;
col1	col2	col3	col4	vgc1	sgc1
1	10	100	111	1000	1000
2	20	200	222	4000	4000
ALTER TABLE t1 MODIFY COLUMN col4 INTEGER;
SELECT * FROM t1 order by col1;
col1	col2	col3	col4	vgc1	sgc1
1	10	100	111	1000	1000
2	20	200	222	4000	4000
DROP TABLE t1;
#
# Bug#22680839: DEFAULT IS NOT DETERMINISTIC AND SHOULD NOT BE
#               ALLOWED IN GENERATED COLUMNS
#
# Test 1: ALTER DEFAULT
#
CREATE TABLE t1(a INT PRIMARY KEY DEFAULT 5,
b INT AS (1 + DEFAULT(a)) STORED,
c INT AS (1 + DEFAULT(a)) VIRTUAL);
INSERT INTO t1 VALUES ();
ALTER TABLE t1 ALTER COLUMN a SET DEFAULT 7, ALGORITHM = INPLACE;
Got one of the listed errors
ALTER TABLE t1 ALTER COLUMN a SET DEFAULT 7;
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
ALTER TABLE t1 MODIFY COLUMN a INT DEFAULT 8;
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
ALTER TABLE t1 CHANGE COLUMN a a DOUBLE DEFAULT 5;
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
DROP TABLE t1;
# Test 2: ALTER DEFAULT + ADD GCOL
#
CREATE TABLE t1(a INT PRIMARY KEY DEFAULT 5);
INSERT INTO t1 VALUES();
ALTER TABLE t1 ALTER COLUMN a SET DEFAULT 7,
ADD COLUMN b INT AS (1 + DEFAULT(a)) STORED,
ALGORITHM = INPLACE;
Got one of the listed errors
ALTER TABLE t1 ALTER COLUMN a SET DEFAULT 7,
ADD COLUMN b INT AS (1 + DEFAULT(a)) STORED,
ADD COLUMN c INT AS (1 + DEFAULT(a)) VIRTUAL;
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
DROP TABLE t1;
#
# Bug#28836543 "DUPLICATE HANDLING OF GENERATION EXPRESSION CHANGE IN
#               FILL_ALTER_INPLACE_INFO".
#
# For ALTER TABLE statements which do not modify generated column type,
# expression and storage type INPLACE algorithm should be supported.
# ALTER TABLE statements which modify generated column expression or
# type should require COPY algorithm. Change of storage type of
# generated column is not supported.
CREATE TABLE t1 (a INT, g INT GENERATED ALWAYS AS (a + 1) VIRTUAL);
ALTER TABLE t1 MODIFY g INT GENERATED ALWAYS AS (a + 1) VIRTUAL COMMENT 'Test', ALGORITHM=INPLACE;
ALTER TABLE t1 MODIFY g INT GENERATED ALWAYS AS (a + 2) VIRTUAL COMMENT 'Test', ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY.
ALTER TABLE t1 MODIFY g BIGINT GENERATED ALWAYS AS (a + 1) VIRTUAL COMMENT 'Test', ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY.
ALTER TABLE t1 MODIFY g INT GENERATED ALWAYS AS (a + 1) STORED COMMENT 'Test', ALGORITHM=INPLACE;
ERROR HY000: 'Changing the STORED status' is not supported for generated columns.
DROP TABLE t1;
CREATE TABLE t2 (a INT, g INT GENERATED ALWAYS AS (a + 1) STORED);
ALTER TABLE t2 MODIFY g INT GENERATED ALWAYS AS (a + 1) STORED COMMENT 'Test', ALGORITHM=INPLACE;
ALTER TABLE t2 MODIFY g INT GENERATED ALWAYS AS (a + 2) STORED COMMENT 'Test', ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY.
# InnoDB has special error message for change of column type
ALTER TABLE t2 MODIFY g BIGINT GENERATED ALWAYS AS (a + 1) STORED COMMENT 'Test', ALGORITHM=INPLACE;
Got one of the listed errors
ALTER TABLE t2 MODIFY g INT GENERATED ALWAYS AS (a + 1) VIRTUAL COMMENT 'Test', ALGORITHM=INPLACE;
ERROR HY000: 'Changing the STORED status' is not supported for generated columns.
DROP TABLE t2;
#
# Bug #28848265 "CHANGING DEFAULT BY MAKING COLUMN NULLABLE DOESN'T
#                UPDATE GENERATED COLUMN".
#
# Test for original issue.
CREATE TABLE t1(a INT NOT NULL DEFAULT 4, gc INT AS (a + DEFAULT(a)) STORED);
INSERT INTO t1 (a) VALUES (1);
ALTER TABLE t1 MODIFY COLUMN a INT NULL;
INSERT INTO t1 (a) VALUES (2);
# Generated stored column value must reflect new default (i.e. NULL).
SELECT *, a + DEFAULT(a) FROM t1;
a	gc	a + DEFAULT(a)
1	NULL	NULL
2	NULL	NULL
# Check that change of default on which generated column depends
# can't be done in-place.
ALTER TABLE t1 MODIFY COLUMN a INT NULL DEFAULT 0, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY.
ALTER TABLE t1 ALTER COLUMN a SET DEFAULT 0, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY.
# However, changing default of some other column can be done
# in-place.
ALTER TABLE t1 ADD b INT;
ALTER TABLE t1 MODIFY COLUMN b INT DEFAULT 0, ALGORITHM=INPLACE;
ALTER TABLE t1 ALTER COLUMN b SET DEFAULT 1, ALGORITHM=INPLACE;
DROP TABLE t1;
DROP VIEW  IF EXISTS v1,v2;
DROP TABLE IF EXISTS t1,t2,t3;
DROP PROCEDURE IF EXISTS p1;
DROP FUNCTION IF EXISTS f1;
DROP TRIGGER IF EXISTS trg1;
DROP TRIGGER IF EXISTS trg2;
set sql_warnings = 0;