1 files changed, 92 insertions, 0 deletions
diff --git a/mysql-test/suite/funcs_1/t/is_check_constraint.test b/mysql-test/suite/funcs_1/t/is_check_constraint.test
new file mode 100644
index 00000000000..30a72d02b34
--- /dev/null
+++ b/mysql-test/suite/funcs_1/t/is_check_constraint.test
@@ -0,0 +1,92 @@
+--source include/have_innodb.inc
+--source include/not_embedded.inc
+--echo #
+--echo # MDEV-17323: Backport INFORMATION_SCHEMA.CHECK_CONSTRAINTS to 10.2
+--echo #
+CREATE user boo1;
+GRANT select,create,alter,drop on foo.* to boo1;
+SHOW GRANTS for boo1;
+CREATE user boo2;
+create database foo;
+# Connect with user boo1
+CONNECT(con1,localhost, boo1,, foo);
+
+SET check_constraint_checks=1;
+CREATE TABLE t0
+(
+ t int, check (t>32) # table constraint
+) ENGINE=myisam;
+--sorted_result
+SELECT * from information_schema.check_constraints;
+
+ALTER TABLE t0
+ADD CONSTRAINT CHK_t0_t CHECK(t<100);
+--sorted_result
+SELECT * from information_schema.check_constraints;
+
+ALTER TABLE t0
+DROP CONSTRAINT CHK_t0_t;
+--sorted_result
+SELECT * from information_schema.check_constraints;
+
+ALTER TABLE t0
+ADD CONSTRAINT CHECK(t<50);
+--sorted_result
+SELECT * from information_schema.check_constraints;
+
+CREATE TABLE t1
+( t int CHECK(t>2), # field constraint
+ tt int,
+ CONSTRAINT CHECK (tt > 32), CONSTRAINT CHECK (tt <50),# autogenerated names table constraints
+ CONSTRAINT CHK_tt CHECK(tt<100) # named table constraint
+) ENGINE=InnoDB;
+ --sorted_result
+SELECT * from information_schema.check_constraints;
+
+ALTER TABLE t1
+DROP CONSTRAINT CHK_tt;
+--sorted_result
+SELECT * from information_schema.check_constraints;
+
+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;
+ --sorted_result
+SELECT * from information_schema.check_constraints;
+
+ALTER TABLE t1
+ADD CONSTRAINT CHK_new_ CHECK(t>tt);
+--sorted_result
+SELECT * from information_schema.check_constraints;
+
+# Create table with same field and table check constraint name
+CREATE TABLE t3
+(
+a int,
+b int check (b>0), # field constraint named 'b'
+CONSTRAINT b check (b>10) # table constraint
+) ENGINE=InnoDB;
+ --sorted_result
+SELECT * from information_schema.check_constraints;
+
+DISCONNECT con1;
+CONNECT(con2, localhost, boo2,, test);
+ --sorted_result
+SELECT * from information_schema.check_constraints;
+
+DISCONNECT con2;
+CONNECT(con1, localhost, boo1,,foo);
+DROP TABLE t0;
+DROP TABLE t1;
+DROP TABLE t2;
+DROP TABLE t3;
+DROP DATABASE foo;
+
+DISCONNECT con1;
+--CONNECTION default
+DROP USER boo1;
+DROP USER boo2;