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Apply InnoDB-specific parts of the fix for bug #9680, wrong error from

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cascading update.
This commit is contained in:
osku
2006-02-10 09:16:35 +00:00
parent 67be8fe939
commit 48eb9e46a1
6 changed files with 73 additions and 2 deletions
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18
mysql-test/innodb.result
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@@ -3213,3 +3213,21 @@ drop trigger t2t;
drop trigger t3t;
drop trigger t4t;
drop table t1, t2, t3, t4, t5;
CREATE TABLE t1 (
field1 varchar(8) NOT NULL DEFAULT '',
field2 varchar(8) NOT NULL DEFAULT '',
PRIMARY KEY (field1, field2)
) ENGINE=InnoDB;
CREATE TABLE t2 (
field1 varchar(8) NOT NULL DEFAULT '' PRIMARY KEY,
FOREIGN KEY (field1) REFERENCES t1 (field1)
ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB;
INSERT INTO t1 VALUES ('old', 'somevalu');
INSERT INTO t1 VALUES ('other', 'anyvalue');
INSERT INTO t2 VALUES ('old');
INSERT INTO t2 VALUES ('other');
UPDATE t1 SET field1 = 'other' WHERE field2 = 'somevalu';
ERROR 23000: Upholding foreign key constraints for table 't1', entry 'other-somevalu', key 1 would lead to a duplicate entry
DROP TABLE t2;
DROP TABLE t1;

29
mysql-test/innodb.test
View File

@@ -2106,3 +2106,32 @@ drop trigger t4t;
drop table t1, t2, t3, t4, t5;
disconnect a;
disconnect b;
#
# Test that cascading updates leading to duplicate keys give the correct
# error message (bug #9680)
#
CREATE TABLE t1 (
field1 varchar(8) NOT NULL DEFAULT '',
field2 varchar(8) NOT NULL DEFAULT '',
PRIMARY KEY (field1, field2)
) ENGINE=InnoDB;
CREATE TABLE t2 (
field1 varchar(8) NOT NULL DEFAULT '' PRIMARY KEY,
FOREIGN KEY (field1) REFERENCES t1 (field1)
ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB;
INSERT INTO t1 VALUES ('old', 'somevalu');
INSERT INTO t1 VALUES ('other', 'anyvalue');
INSERT INTO t2 VALUES ('old');
INSERT INTO t2 VALUES ('other');
--error ER_FOREIGN_DUPLICATE_KEY
UPDATE t1 SET field1 = 'other' WHERE field2 = 'somevalu';
DROP TABLE t2;
DROP TABLE t1;