~drizzle-trunk/drizzle/development

-- source include/testdb_only.inc

-- source include/have_innodb.inc

--disable_warnings

DROP TABLE IF EXISTS t1,t2,t3;

--enable_warnings

#

# Test for KEY_COLUMN_USAGE & TABLE_CONSTRAINTS tables

#

CREATE TABLE t1 (id INT NOT NULL, PRIMARY KEY (id)) ENGINE=INNODB;

CREATE TABLE t2 (id INT PRIMARY KEY, t1_id INT, INDEX par_ind (t1_id, id),

FOREIGN KEY (t1_id) REFERENCES t1(id)  ON DELETE CASCADE,

FOREIGN KEY (t1_id) REFERENCES t1(id)  ON UPDATE CASCADE) ENGINE=INNODB;

CREATE TABLE t3 (id INT PRIMARY KEY, t2_id INT, INDEX par_ind (t2_id),

FOREIGN KEY (id, t2_id) REFERENCES t2(t1_id, id)  ON DELETE CASCADE) ENGINE=INNODB;

select * from information_schema.TABLE_CONSTRAINTS where

TABLE_SCHEMA= "test";

select * from information_schema.KEY_COLUMN_USAGE where

TABLE_SCHEMA= "test";

drop table t3, t2, t1;

#

# Test for REFERENTIAL_CONSTRAINTS table

#

CREATE TABLE t1(a1 INT NOT NULL, a2 INT NOT NULL,

                PRIMARY KEY(a1, a2)) ENGINE=INNODB;

CREATE TABLE t2(b1 INT, b2 INT, INDEX (b1, b2),

                CONSTRAINT A1

                FOREIGN KEY (b1, b2) REFERENCES t1(a1, a2)

                ON UPDATE CASCADE ON DELETE NO ACTION) ENGINE=INNODB;

CREATE TABLE t3(b1 INT, b2 INT, INDEX t3_indx (b1, b2),

		CONSTRAINT A2

		FOREIGN KEY (b1, b2) REFERENCES t2(b1, b2)

		ON UPDATE SET NULL ON DELETE RESTRICT) ENGINE=INNODB;

CREATE TABLE t4(b1 INT, b2 INT, UNIQUE KEY t4_ukey (b1, b2),

                CONSTRAINT A3

                FOREIGN KEY (b1, b2) REFERENCES t3(b1, b2)

                ON UPDATE NO ACTION ON DELETE SET NULL) ENGINE=INNODB;

CREATE TABLE t5(b1 INT, b2 INT, INDEX (b1, b2),

                CONSTRAINT A4

                FOREIGN KEY (b1, b2) REFERENCES t4(b1, b2)

                ON UPDATE RESTRICT ON DELETE CASCADE) ENGINE=INNODB;

select a.CONSTRAINT_SCHEMA, b.TABLE_NAME, CONSTRAINT_TYPE,

       b.CONSTRAINT_NAME, UNIQUE_CONSTRAINT_SCHEMA, UNIQUE_CONSTRAINT_NAME,

       MATCH_OPTION, UPDATE_RULE, DELETE_RULE, b.REFERENCED_TABLE_NAME

from information_schema.TABLE_CONSTRAINTS a,

     information_schema.REFERENTIAL_CONSTRAINTS b

where a.CONSTRAINT_SCHEMA = 'test' and a.CONSTRAINT_SCHEMA = b.CONSTRAINT_SCHEMA and

a.CONSTRAINT_NAME = b.CONSTRAINT_NAME;

drop tables t5, t4, t3, t2, t1;

#

# Bug#25026  `information_schema.KEY_COLUMN_USAGE`.`REFERENCED_TABLE_NAME` returns garbage

#

create database `db-1`;

use `db-1`;

create table `t-2` (

  id int(10) unsigned not null auto_increment,

  primary key (id)

) engine=innodb;

create table `t-1` (

  id int(10) unsigned not null auto_increment,

  idtype int(10) unsigned not null,

  primary key (id),

  key fk_t1_1 (idtype),

  constraint fk_t1_1 foreign key (idtype) references `t-2` (id)

) engine=innodb;

use test;

select referenced_table_schema, referenced_table_name 

from information_schema.key_column_usage

where constraint_schema = 'db-1';

drop database `db-1`;

#

# Bug#35108 SELECT FROM REFERENTIAL_CONSTRAINTS crashes

#

create table t1(id int primary key) engine = Innodb;

create table t2(pid int, foreign key (pid) references t1(id)) engine = Innodb;

set foreign_key_checks = 0;

drop table t1;

select UNIQUE_CONSTRAINT_NAME

from information_schema.referential_constraints

where constraint_schema = schema();

drop table t2;

set foreign_key_checks = 1;