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#
# MDEV-14474: Create INFORMATION_SCHEMA.CHECK_CONSTRAINTS
#
set check_constraint_checks=1;
use test;
create table t0
(
t int, check (t>32) # table constraint
) ENGINE=myisam;
SELECT * from information_schema.check_constraints order by check_clause;
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA mysql
CONSTRAINT_NAME Priv
TABLE_NAME global_priv
CHECK_CLAUSE json_valid(`Priv`)
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CONSTRAINT_1
TABLE_NAME t0
CHECK_CLAUSE `t` > 32
ALTER TABLE t0
ADD CONSTRAINT CHK_t0_t CHECK(t<100);
SELECT * from information_schema.check_constraints order by check_clause;
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA mysql
CONSTRAINT_NAME Priv
TABLE_NAME global_priv
CHECK_CLAUSE json_valid(`Priv`)
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CHK_t0_t
TABLE_NAME t0
CHECK_CLAUSE `t` < 100
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CONSTRAINT_1
TABLE_NAME t0
CHECK_CLAUSE `t` > 32
ALTER TABLE t0
DROP CONSTRAINT CHK_t0_t;
SELECT * from information_schema.check_constraints order by check_clause;
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA mysql
CONSTRAINT_NAME Priv
TABLE_NAME global_priv
CHECK_CLAUSE json_valid(`Priv`)
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CONSTRAINT_1
TABLE_NAME t0
CHECK_CLAUSE `t` > 32
CREATE TABLE t1
( t int CHECK(t>2), # field constraint
tt int, CONSTRAINT CHK_tt CHECK(tt<100) # table constraint
) ENGINE=InnoDB;
SELECT * from information_schema.check_constraints order by check_clause;
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA mysql
CONSTRAINT_NAME Priv
TABLE_NAME global_priv
CHECK_CLAUSE json_valid(`Priv`)
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CHK_tt
TABLE_NAME t1
CHECK_CLAUSE `tt` < 100
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME t
TABLE_NAME t1
CHECK_CLAUSE `t` > 2
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CONSTRAINT_1
TABLE_NAME t0
CHECK_CLAUSE `t` > 32
ALTER TABLE t1
DROP CONSTRAINT CHK_tt;
SELECT * from information_schema.check_constraints order by check_clause;
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA mysql
CONSTRAINT_NAME Priv
TABLE_NAME global_priv
CHECK_CLAUSE json_valid(`Priv`)
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME t
TABLE_NAME t1
CHECK_CLAUSE `t` > 2
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CONSTRAINT_1
TABLE_NAME t0
CHECK_CLAUSE `t` > 32
create table t2
(
name VARCHAR(30) CHECK(CHAR_LENGTH(name)>2), #field constraint
start_date DATE,
end_date DATE,
CONSTRAINT CHK_dates CHECK(start_date IS NULL) #table constraint
)ENGINE=Innodb;
SELECT * from information_schema.check_constraints order by check_clause;
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME name
TABLE_NAME t2
CHECK_CLAUSE char_length(`name`) > 2
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA mysql
CONSTRAINT_NAME Priv
TABLE_NAME global_priv
CHECK_CLAUSE json_valid(`Priv`)
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CHK_dates
TABLE_NAME t2
CHECK_CLAUSE `start_date` is null
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME t
TABLE_NAME t1
CHECK_CLAUSE `t` > 2
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CONSTRAINT_1
TABLE_NAME t0
CHECK_CLAUSE `t` > 32
ALTER TABLE t1
ADD CONSTRAINT CHK_new_ CHECK(t>tt);
SELECT * from information_schema.check_constraints order by check_clause;
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME name
TABLE_NAME t2
CHECK_CLAUSE char_length(`name`) > 2
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA mysql
CONSTRAINT_NAME Priv
TABLE_NAME global_priv
CHECK_CLAUSE json_valid(`Priv`)
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CHK_dates
TABLE_NAME t2
CHECK_CLAUSE `start_date` is null
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME t
TABLE_NAME t1
CHECK_CLAUSE `t` > 2
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CONSTRAINT_1
TABLE_NAME t0
CHECK_CLAUSE `t` > 32
CONSTRAINT_CATALOG def
CONSTRAINT_SCHEMA test
CONSTRAINT_NAME CHK_new_
TABLE_NAME t1
CHECK_CLAUSE `t` > `tt`
create table t3
(
a int,
b int check (b>0), # field constraint named 'b'
CONSTRAINT b check (b>10) # table constraint
) ENGINE=InnoDB;
select * from information_schema.check_constraints order by check_clause;
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_NAME CHECK_CLAUSE
def test name t2 char_length(`name`) > 2
def mysql Priv global_priv json_valid(`Priv`)
def test b t3 `b` > 0
def test b t3 `b` > 10
def test CHK_dates t2 `start_date` is null
def test t t1 `t` > 2
def test CONSTRAINT_1 t0 `t` > 32
def test CHK_new_ t1 `t` > `tt`
drop table t0;
drop table t1;
drop table t2;
drop table t3;
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