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8639e28808
One can create table with the same name for `field` and `table` `check` constraint. For example: `create table t(a int check(a>0), constraint a check(a>10));` But when inserting new rows same error is always raised. For example with ```insert into t values (-1);``` and ```insert into t values (10);``` same error `ER_CONSTRAINT_FAILED` is obtained and it is not clear which constraint is violated. This patch solve this error so that in case if field constraint is violated the first parameter in the error message is `table.field_name` and if table constraint is violated the first parameter in error message is `constraint_name`.
166 lines
4.7 KiB
Plaintext
166 lines
4.7 KiB
Plaintext
#
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# Check of check constraints
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set @save_check_constraint=@@check_constraint_checks;
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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;
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show create table t1;
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insert into t1 values (100,100);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (1,1);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (20,1);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (20,30);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (500,500);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (101,101),(102,102),(600,600),(103,103);
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select * from t1;
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truncate table t1;
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insert ignore into t1 values (101,101),(102,102),(600,600),(103,103);
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select * from t1;
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set check_constraint_checks=0;
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truncate table t1;
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insert into t1 values (101,101),(102,102),(600,600),(103,103);
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select * from t1;
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set check_constraint_checks=@save_check_constraint;
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--replace_regex /failed for.*/failed for table/
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--error ER_CONSTRAINT_FAILED
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alter table t1 add c int default 0 check (c < 10);
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set check_constraint_checks=0;
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alter table t1 add c int default 0 check (c < 10);
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alter table t1 add check (a+b+c < 500);
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set check_constraint_checks=@save_check_constraint;
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show create table t1;
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--error ER_CONSTRAINT_FAILED
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insert into t1 values(105,105,105);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values(249,249,9);
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insert into t1 values(105,105,9);
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select * from t1;
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create table t2 like t1;
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show create table t2;
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--error ER_CANT_DROP_FIELD_OR_KEY
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alter table t2 drop constraint c;
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alter table t2 drop constraint if exists c;
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alter table t2 drop constraint min;
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show create table t2;
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drop table t1,t2;
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#
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# check constraint name auto-generation:
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#
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create or replace table t1 (a int, b int, constraint check (a>b));
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show create table t1;
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create or replace table t1 (a int, b int,
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constraint CONSTRAINT_1 check (a>1),
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constraint check (b>1));
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show create table t1;
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create or replace table t1 (a int, b int,
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constraint CONSTRAINT_1 check (a>1),
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constraint check (b>1),
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constraint CONSTRAINT_2 check (a>b));
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show create table t1;
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drop table t1;
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#
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# MDEV-10370 Check constraints on virtual columns fails on INSERT when column not specified
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#
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create table t1(c1 int, c2 int as (c1 + 1), check (c2 > 2));
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--error ER_CONSTRAINT_FAILED
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insert into t1(c1) values(1);
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insert into t1(c1) values(2);
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drop table t1;
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#
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# MDEV-11117 CHECK constraint fails on intermediate step of ALTER
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#
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-- error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
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create or replace table t1( c1 int auto_increment primary key, check( c1 > 0 or c1 is null ) );
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#
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# MDEV-12421 Check constraint with query crashes server and renders DB unusable
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#
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--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
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create table t1 (a int check (@b in (select user from mysql.user)));
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--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
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create table t1 (a int check (a > @b));
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#
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# MDEV-13596 CHECK constraints disallow NULL to pass through, violating SQL
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#
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create table t1 (a int check (a = 1));
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insert t1 values (1);
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--error ER_CONSTRAINT_FAILED
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insert t1 values (2);
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insert t1 values (NULL);
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select * from t1;
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drop table t1;
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#
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# MDEV-15141 Check constraint validation on a datetime field crashes the process
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#
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create table t1 (id int auto_increment primary key, datecol datetime, check (datecol>'0001-01-01 00:00:00'));
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insert into t1 (datecol) values (now());
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insert into t1 (datecol) values (now());
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drop table t1;
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#
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# MDEV-15461 Check Constraints with binary logging makes insert inconsistent
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#
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CREATE TABLE t1 (
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EmployeeID SMALLINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
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FirstName VARCHAR(30) NOT NULL CHECK (CHAR_LENGTH(FirstName > 2))
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);
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--error ER_TRUNCATED_WRONG_VALUE
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INSERT INTO t1 VALUES (NULL, 'Ken');
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SHOW WARNINGS;
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--error ER_TRUNCATED_WRONG_VALUE
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INSERT INTO t1 VALUES (NULL, 'Ken'),(NULL, 'Brian');
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SHOW WARNINGS;
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INSERT IGNORE INTO t1 VALUES (NULL, 'Ken');
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INSERT IGNORE INTO t1 VALUES (NULL, 'Ken'),(NULL, 'Brian');
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set sql_mode="";
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INSERT INTO t1 VALUES (NULL, 'Ken');
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INSERT INTO t1 VALUES (NULL, 'Ken'),(NULL, 'Brian');
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set sql_mode=default;
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select * from t1;
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drop table t1;
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--echo #
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--echo # MDEV-16630: Ambiguous error message when check constraint
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--echo # matches table name
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--echo #
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use test;
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--disable_warnings
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drop table if exists t;
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--enable_warnings
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create table t(a int, b int check(b>0),
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constraint b check(a<b), constraint a check(a>0),
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constraint x check (a>10));
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show create table t;
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# Generate error when field constraint 'b' is violated
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--echo # Field constraint 'b' will fail
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--error ER_CONSTRAINT_FAILED
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insert into t values (-1, 0);
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# Generate error when table constraint 'b' is violated.
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--echo # Table constraint 'b' will fail
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--error ER_CONSTRAINT_FAILED
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insert into t values (1,1);
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drop table t;
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