SET @@session.default_storage_engine = 'InnoDB';
#            - UNIQUE KEY
#            - INDEX
#            - FULLTEXT INDEX
#            - SPATIAL INDEX (not supported)
#            - FOREIGN INDEX (partially supported)
#            - CHECK (allowed but not used)
# UNIQUE
create table t1 (a int, b int generated always as (a*2) stored unique);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) GENERATED ALWAYS AS (`a` * 2) STORED,
  UNIQUE KEY `b` (`b`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
describe t1;
Field	Type	Null	Key	Default	Extra
a	int(11)	YES		NULL	
b	int(11)	YES	UNI	NULL	STORED GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored, unique (b));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) GENERATED ALWAYS AS (`a` * 2) STORED,
  UNIQUE KEY `b` (`b`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
describe t1;
Field	Type	Null	Key	Default	Extra
a	int(11)	YES		NULL	
b	int(11)	YES	UNI	NULL	STORED GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored);
alter table t1 add unique key (b);
drop table t1;
# Testing data manipulation operations involving UNIQUE keys
# on generated columns can be found in:
#  - gcol_ins_upd.inc
#  - gcol_select.inc
#
# INDEX
create table t1 (a int, b int generated always as (a*2) stored, index (b));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) GENERATED ALWAYS AS (`a` * 2) STORED,
  KEY `b` (`b`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
describe t1;
Field	Type	Null	Key	Default	Extra
a	int(11)	YES		NULL	
b	int(11)	YES	MUL	NULL	STORED GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored, index (a,b));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) GENERATED ALWAYS AS (`a` * 2) STORED,
  KEY `a` (`a`,`b`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
describe t1;
Field	Type	Null	Key	Default	Extra
a	int(11)	YES	MUL	NULL	
b	int(11)	YES		NULL	STORED GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored);
alter table t1 add index (b);
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored);
alter table t1 add index (a,b);
create table t2 like t1;
drop table t2;
drop table t1;
# Testing data manipulation operations involving INDEX
# on generated columns can be found in:
#  - gcol_select.inc
#
# TODO: FULLTEXT INDEX
# SPATIAL INDEX
# FOREIGN KEY
# Rejected FK options.
create table t1 (a int, b int generated always as (a+1) stored,
foreign key (b) references t2(a) on update set null);
ERROR HY000: Cannot define foreign key with ON UPDATE SET NULL clause on a generated column
create table t1 (a int, b int generated always as (a+1) stored,
foreign key (b) references t2(a) on update cascade);
ERROR HY000: Cannot define foreign key with ON UPDATE CASCADE clause on a generated column
create table t1 (a int, b int generated always as (a+1) stored,
foreign key (b) references t2(a) on delete set null);
ERROR HY000: Cannot define foreign key with ON DELETE SET NULL clause on a generated column
create table t1 (a int, b int generated always as (a+1) stored);
alter table t1 add foreign key (b) 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 foreign key (b) references t2(a) on update cascade;
ERROR HY000: Cannot define foreign key with ON UPDATE CASCADE clause on a generated column
alter table t1 add foreign key (b) references t2(a) on delete set null;
ERROR HY000: Cannot define foreign key with ON DELETE SET NULL clause on a generated column
drop table t1;
# Allowed FK options.
create table t2 (a int primary key, b char(5));
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on update restrict);
drop table t1;
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on update no action);
drop table t1;
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on delete restrict);
drop table t1;
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on delete cascade);
drop table t1;
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on delete no action);
drop table t1,t2;

# Testing data manipulation operations involving FOREIGN KEY
# on generated columns can be found in:
#  - gcol_ins_upd.inc
#  - gcol_select.inc
#
# TODO: CHECK
#
# Test how optimizer picks indexes defined on a GC
#
CREATE TABLE t1 (f1 int, gc int AS (f1 + 1) STORED, UNIQUE(gc));
INSERT INTO t1(f1) VALUES (1),(2),(0),(9),(3),(4),(8),(7),(5),(6);
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
# Should use index
SELECT * FROM t1 WHERE f1 + 1 > 7;
f1	gc
7	8
8	9
9	10
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > 7;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using where
SELECT * FROM t1 WHERE f1 + 1 = 7;
f1	gc
6	7
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 = 7;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using where
SELECT * FROM t1 WHERE f1 + 1 IN (7,5);
f1	gc
4	5
6	7
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 IN(7,5);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using where
SELECT * FROM t1 WHERE f1 + 1 BETWEEN 5 AND 7;
f1	gc
4	5
5	6
6	7
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 BETWEEN 5 AND 7;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using where
# Check that expression isn't transformed for a disabled key
SELECT * FROM t1 IGNORE KEY (gc) WHERE f1 + 1 BETWEEN 5 AND 7;
f1	gc
4	5
5	6
6	7
EXPLAIN SELECT * FROM t1 IGNORE KEY (gc) WHERE f1 + 1 BETWEEN 5 AND 7;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using where
# Check that ORDER BY could be optimized
SELECT * FROM t1 ORDER BY f1 + 1;
f1	gc
0	1
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
EXPLAIN SELECT * FROM t1 ORDER BY f1 + 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using filesort
EXPLAIN SELECT * FROM t1 IGNORE KEY (gc) ORDER BY f1 + 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using filesort
# Check that GROUP BY could be optimized
SELECT f1 + 1, MAX(GC) FROM t1 GROUP BY f1 + 1;
f1 + 1	MAX(GC)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
EXPLAIN SELECT f1 + 1, MAX(GC) FROM t1 GROUP BY f1 + 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using temporary; Using filesort
EXPLAIN SELECT f1 + 1, MAX(GC)
FROM t1 IGNORE KEY (gc) GROUP BY f1 + 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using temporary; Using filesort
# Shouldn't use index
SELECT * FROM t1 WHERE f1 + 1 > 7.0;
f1	gc
7	8
8	9
9	10
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > 7.0;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using where
DROP TABLE t1;
# Pick index with proper type
CREATE TABLE t1 (f1 int,
gc_int int AS (f1 + 1) STORED,
gc_date DATE AS (f1 + 1) STORED,
KEY gc_int_idx(gc_int),
KEY gc_date_idx(gc_date));
INSERT INTO t1(f1) VALUES
(030303),(040404),
(050505),(060606),
(010101),(020202),
(030303),(040404),
(050505),(060606),
(010101),(020202),
(090909),(101010),
(010101),(020202),
(070707),(080808);
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
SELECT * FROM t1 WHERE f1 + 1 > 070707;
f1	gc_int	gc_date
101010	101011	2010-10-11
70707	70708	2007-07-08
80808	80809	2008-08-09
90909	90910	2009-09-10
# INT column & index should be picked
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > 070707;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	18	Using where
SELECT * FROM t1 WHERE f1 + 1 > CAST(070707 AS DATE);
f1	gc_int	gc_date
101010	101011	2010-10-11
70707	70708	2007-07-08
80808	80809	2008-08-09
90909	90910	2009-09-10
# DATE column & index should be picked
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > CAST(070707 AS DATE);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	18	Using where
DROP TABLE t1;
#
# BUG#21229846: WL8170: SIGNAL 11 IN JOIN::MAKE_SUM_FUNC_LIST
#
CREATE TABLE t1 (
pk int primary key auto_increment,
col_int_key INTEGER ,
col_int_gc_key INT GENERATED ALWAYS AS (col_int_key + 1) STORED,
KEY col_int_gc_key(col_int_gc_key)
);
INSERT INTO t1 ( col_int_key) VALUES (7);
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
SELECT  table1.col_int_key + 1 AS field1, table2.col_int_key AS field2
FROM (t1 AS table1  JOIN t1 AS table2 ON (table2.pk = table1.pk))
ORDER BY field1, field2;
field1	field2
8	7
EXPLAIN SELECT  table1.col_int_key + 1 AS field1, table2.col_int_key AS field2
FROM (t1 AS table1  JOIN t1 AS table2 ON (table2.pk = table1.pk))
ORDER BY field1, field2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	table1	ALL	PRIMARY	NULL	NULL	NULL	1	Using temporary; Using filesort
1	SIMPLE	table2	eq_ref	PRIMARY	PRIMARY	4	test.table1.pk	1	
SELECT  table1.col_int_key + 1 AS field1, table2.col_int_key AS field2
FROM (t1 AS table1  JOIN t1 AS table2 ON (table2.pk = table1.pk))
GROUP BY field1, field2;
field1	field2
8	7
EXPLAIN SELECT  table1.col_int_key + 1 AS field1, table2.col_int_key AS field2
FROM (t1 AS table1  JOIN t1 AS table2 ON (table2.pk = table1.pk))
GROUP BY field1, field2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	table1	ALL	PRIMARY	NULL	NULL	NULL	1	Using temporary; Using filesort
1	SIMPLE	table2	eq_ref	PRIMARY	PRIMARY	4	test.table1.pk	1	
DROP TABLE t1;
#
# Bug#21770798 OPTIMIZER DOES NOT USE INDEX FOR GENERATED EXPRESSIONS
#              WITH LOGICAL OPERATORS
#
CREATE TABLE t (a INT, b INT,
gc_and INT GENERATED ALWAYS AS (a AND b) STORED,
gc_or INT GENERATED ALWAYS AS (a OR b) STORED,
gc_xor INT GENERATED ALWAYS AS (a XOR b) STORED,
gc_not INT GENERATED ALWAYS AS (NOT a) STORED,
gc_case INT GENERATED ALWAYS AS
(CASE WHEN (a AND b) THEN a ELSE b END) STORED,
INDEX(gc_and), INDEX(gc_or), INDEX(gc_xor), INDEX(gc_not),
INDEX(gc_case));
INSERT INTO t (a, b) VALUES (0, 0), (0, 1), (1, 0), (1, 1);
ANALYZE TABLE t;
Table	Op	Msg_type	Msg_text
test.t	analyze	status	OK
EXPLAIN SELECT a, b FROM t WHERE (a AND b) = 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a, b FROM t WHERE (a AND b) = 1;
a	b
1	1
EXPLAIN SELECT a, b FROM t WHERE 1 = (a AND b);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a, b FROM t WHERE 1 = (a AND b);
a	b
1	1
EXPLAIN SELECT a, b FROM t WHERE (a AND b) IN (1, 2, 3);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a, b FROM t WHERE (a AND b) IN (1, 2, 3);
a	b
1	1
EXPLAIN SELECT a, b FROM t WHERE (a OR b) = 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a, b FROM t WHERE (a OR b) = 1;
a	b
0	1
1	0
1	1
EXPLAIN SELECT a, b FROM t WHERE (a OR b) BETWEEN 1 AND 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a, b FROM t WHERE (a OR b) BETWEEN 1 AND 10;
a	b
0	1
1	0
1	1
EXPLAIN SELECT a, b FROM t WHERE (a XOR b) = 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a, b FROM t WHERE (a XOR b) = 1;
a	b
0	1
1	0
EXPLAIN SELECT a FROM t WHERE (NOT a) = 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a FROM t WHERE (NOT a) = 1;
a
0
0
EXPLAIN SELECT a FROM t WHERE (CASE WHEN (a AND b) THEN a ELSE b END) = 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a FROM t WHERE (CASE WHEN (a AND b) THEN a ELSE b END) = 1;
a
0
1
EXPLAIN SELECT a, b FROM t WHERE 1 = (b AND a);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a, b FROM t WHERE 1 = (b AND a);
a	b
1	1
EXPLAIN SELECT a, b FROM t WHERE 1 = (b OR a);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	NULL	NULL	NULL	NULL	4	Using where
SELECT a, b FROM t WHERE 1 = (b OR a);
a	b
0	1
1	0
1	1
DROP TABLE t;
#
# Bug#22810883: ASSERTION FAILED:
#               !(USED_TABS & (~READ_TABLES & ~FILTER_FOR_TABLE))
#
CREATE TABLE t1 (a1 INTEGER GENERATED ALWAYS AS (1 AND 0) STORED,
a2 INTEGER, KEY (a1));
INSERT INTO t1 VALUES ();
CREATE TABLE t2 (b INTEGER);
INSERT INTO t2 VALUES (1);
ANALYZE TABLE t1, t2;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
test.t2	analyze	status	OK
# Used to choose the index on a1 and get wrong results.
EXPLAIN SELECT * FROM t1 WHERE (a2 AND a2) = 0;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1	Using where
SELECT * FROM t1 WHERE (a2 AND a2) = 0;
a1	a2
# Used to get assertion or wrong results.
EXPLAIN SELECT * FROM t1 STRAIGHT_JOIN t2 ON b WHERE (b AND b) = 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1	
1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (flat, BNL join)
SELECT * FROM t1 STRAIGHT_JOIN t2 ON b WHERE (b AND b) = 1;
a1	a2	b
0	NULL	1
DROP TABLE t1, t2;
#
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;