1 files changed, 178 insertions, 0 deletions
diff --git a/mysql-test/main/check_constraint.test b/mysql-test/main/check_constraint.test
new file mode 100644
index 00000000000..93538fd1666
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+++ b/mysql-test/main/check_constraint.test
@@ -0,0 +1,178 @@
+#
+# Check of check constraints
+
+set @save_check_constraint=@@check_constraint_checks;
+
+create table t1 (a int check(a>10), b int check (b > 20), constraint `min` check (a+b > 100), constraint `max` check (a+b <500)) engine=myisam;
+show create table t1;
+insert into t1 values (100,100);
+--error ER_CONSTRAINT_FAILED
+insert into t1 values (1,1);
+--error ER_CONSTRAINT_FAILED
+insert into t1 values (20,1);
+--error ER_CONSTRAINT_FAILED
+insert into t1 values (20,30);
+--error ER_CONSTRAINT_FAILED
+insert into t1 values (500,500);
+
+--error ER_CONSTRAINT_FAILED
+insert into t1 values (101,101),(102,102),(600,600),(103,103);
+select * from t1;
+truncate table t1;
+insert ignore into t1 values (101,101),(102,102),(600,600),(103,103);
+select * from t1;
+set check_constraint_checks=0;
+truncate table t1;
+insert into t1 values (101,101),(102,102),(600,600),(103,103);
+select * from t1;
+set check_constraint_checks=@save_check_constraint;
+
+--error ER_CONSTRAINT_FAILED
+alter table t1 add c int default 0 check (c < 10);
+
+set check_constraint_checks=0;
+alter table t1 add c int default 0 check (c < 10);
+alter table t1 add check (a+b+c < 500);
+set check_constraint_checks=@save_check_constraint;
+
+show create table t1;
+--error ER_CONSTRAINT_FAILED
+insert into t1 values(105,105,105);
+--error ER_CONSTRAINT_FAILED
+insert into t1 values(249,249,9);
+insert into t1 values(105,105,9);
+select * from t1;
+
+create table t2 like t1;
+show create table t2;
+--error ER_CANT_DROP_FIELD_OR_KEY
+alter table t2 drop constraint c;
+alter table t2 drop constraint if exists c;
+alter table t2 drop constraint min;
+show create table t2;
+
+drop table t1,t2;
+
+#
+# check constraint name auto-generation:
+#
+create or replace table t1 (a int, b int, constraint check (a>b));
+show create table t1;
+create or replace table t1 (a int, b int,
+  constraint CONSTRAINT_1 check (a>1),
+  constraint check (b>1));
+show create table t1;
+create or replace table t1 (a int, b int,
+  constraint CONSTRAINT_1 check (a>1),
+  constraint check (b>1),
+  constraint CONSTRAINT_2 check (a>b));
+show create table t1;
+drop table t1;
+
+#
+# MDEV-10370 Check constraints on virtual columns fails on INSERT when column not specified
+#
+create table t1(c1 int, c2 int as (c1 + 1), check (c2 > 2));
+--error ER_CONSTRAINT_FAILED
+insert into t1(c1) values(1);
+insert into t1(c1) values(2);
+drop table t1;
+
+#
+# MDEV-11117 CHECK constraint fails on intermediate step of ALTER
+#
+-- error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
+create or replace table t1( c1 int auto_increment primary key, check( c1 > 0 or c1 is null ) );
+
+#
+# MDEV-12421 Check constraint with query crashes server and renders DB unusable
+#
+--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
+create table t1 (a int check (@b in (select user from mysql.user)));
+--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
+create table t1 (a int check (a > @b));
+
+#
+# MDEV-13596 CHECK constraints disallow NULL to pass through, violating SQL
+#
+create table t1 (a int check (a = 1));
+insert t1 values (1);
+--error ER_CONSTRAINT_FAILED
+insert t1 values (2);
+insert t1 values (NULL);
+select * from t1;
+drop table t1;
+
+#
+# MDEV-15141 Check constraint validation on a datetime field crashes the process
+#
+create table t1 (id int auto_increment primary key, datecol datetime, check (datecol>'0001-01-01 00:00:00'));
+insert into t1 (datecol) values (now());
+insert into t1 (datecol) values (now());
+drop table t1;
+
+#
+# MDEV-15461 Check Constraints with binary logging makes insert inconsistent
+#
+
+CREATE TABLE t1 (
+  EmployeeID SMALLINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+  FirstName VARCHAR(30) NOT NULL CHECK (CHAR_LENGTH(FirstName > 2))
+);
+
+--error ER_TRUNCATED_WRONG_VALUE
+INSERT INTO t1 VALUES (NULL, 'Ken');
+SHOW WARNINGS;
+--error ER_TRUNCATED_WRONG_VALUE
+INSERT INTO t1 VALUES (NULL, 'Ken'),(NULL, 'Brian');
+SHOW WARNINGS;
+INSERT IGNORE INTO t1 VALUES (NULL, 'Ken');
+INSERT IGNORE INTO t1 VALUES (NULL, 'Ken'),(NULL, 'Brian');
+set sql_mode="";
+INSERT INTO t1 VALUES (NULL, 'Ken');
+INSERT INTO t1 VALUES (NULL, 'Ken'),(NULL, 'Brian');
+set sql_mode=default;
+select * from t1;
+drop table t1;
+
+--echo #
+--echo # MDEV-16630: Ambiguous error message when check constraint
+--echo #             matches table name
+--echo #
+
+use test;
+--disable_warnings
+drop table if exists t;
+--enable_warnings
+
+create table t(a int, b int check(b>0),
+               constraint b check(a<b), constraint a check(a>0),
+               constraint x check (a>10));
+
+show create table t;
+
+# Generate error when field constraint 'b' is violated
+--echo # Field constraint 'b' will fail
+--error ER_CONSTRAINT_FAILED
+insert into t values (-1, 0);
+
+# Generate error when table constraint 'b' is violated.
+--echo # Table constraint 'b' will fail
+--error ER_CONSTRAINT_FAILED
+insert into t values (1,1);
+
+drop table t;
+
+#
+# check constraints and auto_is_null typo
+#
+create table t1 (a int auto_increment primary key, b int, check (b > 5));
+--error ER_CONSTRAINT_FAILED
+insert t1 (b) values (1);
+insert t1 (b) values (10);
+select * from t1 where a is null;
+set sql_auto_is_null=1;
+select * from t1 where a is null;
+--error ER_CONSTRAINT_FAILED
+insert t1 (b) values (1);
+drop table t1;