#
# Test Foreign Key Cascading DELETEs
#

--source include/galera_cluster.inc

--echo #
--echo # test phase with cascading foreign key through 3 tables
--echo #

--connection node_1

CREATE TABLE grandparent (
    id INT NOT NULL PRIMARY KEY
) ENGINE=InnoDB;

CREATE TABLE parent (
    id INT NOT NULL PRIMARY KEY,
    grandparent_id INT,
    FOREIGN KEY (grandparent_id)
        REFERENCES grandparent(id)
        ON DELETE CASCADE
) ENGINE=InnoDB;

CREATE TABLE child (
    id INT NOT NULL PRIMARY KEY, 
    parent_id INT,
    FOREIGN KEY (parent_id) 
        REFERENCES parent(id)
        ON DELETE CASCADE
) ENGINE=InnoDB;

INSERT INTO grandparent VALUES (1),(2);
INSERT INTO parent VALUES (1,1), (2,2);
INSERT INTO child VALUES (1,1), (2,2);

--connection node_2
--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'grandparent'
--source include/wait_condition.inc
--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'parent'
--source include/wait_condition.inc
--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'child'
--source include/wait_condition.inc
--let $wait_condition = SELECT COUNT(*) = 2 FROM child;
--source include/wait_condition.inc
--let $wait_condition = SELECT COUNT(*) = 2 FROM parent;
--source include/wait_condition.inc
--let $wait_condition = SELECT COUNT(*) = 2 FROM grandparent;
--source include/wait_condition.inc
DELETE FROM grandparent WHERE id = 1;

SELECT * FROM grandparent;
SELECT * FROM parent;
SELECT * FROM child;

--connection node_1
--let $wait_condition = SELECT COUNT(*) = 1 FROM child;
--source include/wait_condition.inc
--let $wait_condition = SELECT COUNT(*) = 1 FROM parent;
--source include/wait_condition.inc
--let $wait_condition = SELECT COUNT(*) = 1 FROM grandparent;
--source include/wait_condition.inc

SELECT * FROM grandparent;
SELECT * FROM parent;
SELECT * FROM child;

DROP TABLE child;
DROP TABLE parent;
DROP TABLE grandparent;

--echo
--echo Scenario 2, testing PA applying with FK cascade delete
--echo

CREATE TABLE p1 (f1 INTEGER PRIMARY KEY, f2 INTEGER) ENGINE=INNODB;
CREATE TABLE p2 (f1 INTEGER PRIMARY KEY, f2 INTEGER) ENGINE=INNODB;
CREATE TABLE c (f1 INTEGER PRIMARY KEY, p1_id INTEGER, p2_id INTEGER,
                f2 INTEGER,
                CONSTRAINT fk_1 FOREIGN KEY (p1_id) REFERENCES p1 (f1)
                    ON DELETE CASCADE,
                CONSTRAINT fk_2 FOREIGN KEY (p2_id) REFERENCES p2 (f1)
                    ON DELETE CASCADE);

--let $count = 100
--disable_query_log
while ($count)
{
    --eval INSERT INTO p1 VALUES ($count, 0);
    --eval INSERT INTO p2 VALUES ($count, 0);
    --eval INSERT INTO c VALUES ($count, $count, $count, 0);
    --dec $count
}

--connection node_2
set global wsrep_slave_threads=2;

--connection node_1
--let $count = 100
while ($count)
{
    --eval DELETE FROM p2 WHERE f1=$count;
    --eval DELETE FROM p1 WHERE f1=$count;

--dec $count
}
--enable_query_log

--connection node_2
set global wsrep_slave_threads=DEFAULT;


SELECT * FROM p1;
SELECT * FROM p2;
SELECT * FROM c;

--connection node_1
DROP TABLE c;
DROP TABLE p1,p2;

--echo
--echo Scenario 4, testing PA applying with FK cascade delete on
--echo more than one level
--echo
CREATE TABLE gp1 (f1 INTEGER PRIMARY KEY, f2 INTEGER) ENGINE=INNODB;
CREATE TABLE gp2 (f1 INTEGER PRIMARY KEY, f2 INTEGER) ENGINE=INNODB;
CREATE TABLE p1 (f1 INTEGER PRIMARY KEY, p1_id INTEGER, p2_id INTEGER,
                 f2 INTEGER,
                CONSTRAINT pfk_3 FOREIGN KEY (p1_id) REFERENCES gp1 (f1)
                    ON DELETE CASCADE
                ) ENGINE=INNODB;
CREATE TABLE p2 (f1 INTEGER PRIMARY KEY,p1_id INTEGER, p2_id INTEGER,
                 f2 INTEGER,
                CONSTRAINT pfk_4 FOREIGN KEY (p1_id) REFERENCES gp2 (f1)
                    ON DELETE CASCADE
		 ) ENGINE=INNODB;
CREATE TABLE c (f1 INTEGER PRIMARY KEY, p1_id INTEGER, p2_id INTEGER,
                f2 INTEGER,
                CONSTRAINT fk_1 FOREIGN KEY (p1_id) REFERENCES p1 (f1)
                    ON DELETE CASCADE,
                CONSTRAINT fk_2 FOREIGN KEY (p2_id) REFERENCES p2 (f1)
                    ON DELETE CASCADE) ENGINE=INNODB;

--let $count = 100
--disable_query_log
while ($count)
{
    --eval INSERT INTO gp1 VALUES ($count, 0);
    --eval INSERT INTO gp2 VALUES ($count, 0);
    --eval INSERT INTO p1 VALUES ($count, $count, $count, 0);
    --eval INSERT INTO p2 VALUES ($count, $count, $count, 0);
    --eval INSERT INTO c VALUES ($count, $count, $count, 0);
    --dec $count
}

--connection node_2
set global wsrep_slave_threads=2;

--connection node_1
--let $count = 100
while ($count)
{
    --eval DELETE FROM gp1 WHERE f1=$count;
    --eval DELETE FROM gp2 WHERE f1=$count;

--dec $count
}
--enable_query_log

--connection node_2
set global wsrep_slave_threads=DEFAULT;

SELECT * FROM gp1;
SELECT * FROM gp2;
SELECT * FROM p1;
SELECT * FROM p2;
SELECT * FROM c;

--connection node_1
DROP TABLE c;
DROP TABLE p1,p2;
DROP TABLE gp1,gp2;

--echo
--echo Scenario 3, testing PA applying with FK cascade delete on
--echo more than one level in a diamond topology
--echo
CREATE TABLE ggp1 (f1 INTEGER PRIMARY KEY, f2 INTEGER) ENGINE=INNODB;
CREATE TABLE gp1 (f1 INTEGER PRIMARY KEY, p1_id INTEGER, p2_id INTEGER,
                  f2 INTEGER,
                  CONSTRAINT pfk_6 FOREIGN KEY (p1_id) REFERENCES ggp1 (f1)
                  ON DELETE CASCADE
		  ) ENGINE=INNODB;
CREATE TABLE gp2 (f1 INTEGER PRIMARY KEY, p1_id INTEGER, p2_id INTEGER,
                  f2 INTEGER,
                  CONSTRAINT pfk_5 FOREIGN KEY (p1_id) REFERENCES ggp1 (f1)
                  ON DELETE CASCADE
		  ) ENGINE=INNODB;
CREATE TABLE p1 (f1 INTEGER PRIMARY KEY, p1_id INTEGER, p2_id INTEGER,
                 f2 INTEGER,
                CONSTRAINT pfk_3 FOREIGN KEY (p1_id) REFERENCES gp1 (f1)
                    ON DELETE CASCADE
                ) ENGINE=INNODB;
CREATE TABLE p2 (f1 INTEGER PRIMARY KEY,p1_id INTEGER, p2_id INTEGER,
                 f2 INTEGER,
                CONSTRAINT pfk_4 FOREIGN KEY (p1_id) REFERENCES gp2 (f1)
                    ON DELETE CASCADE
		 ) ENGINE=INNODB;
CREATE TABLE c (f1 INTEGER PRIMARY KEY, p1_id INTEGER, p2_id INTEGER,
                f2 INTEGER,
                CONSTRAINT fk_1 FOREIGN KEY (p1_id) REFERENCES p1 (f1)
                    ON DELETE CASCADE,
                CONSTRAINT fk_2 FOREIGN KEY (p2_id) REFERENCES p2 (f1)
                    ON DELETE CASCADE) ENGINE=INNODB;

--let $count = 100
--disable_query_log
while ($count)
{
    --eval INSERT INTO ggp1 VALUES ($count, 0);
    --eval INSERT INTO gp1 VALUES ($count, $count, $count, 0);
    --eval INSERT INTO gp2 VALUES ($count,  $count, $count, 0);
    --eval INSERT INTO p1 VALUES ($count, $count, $count, 0);
    --eval INSERT INTO p2 VALUES ($count, $count, $count, 0);
    --eval INSERT INTO c VALUES ($count, $count, $count, 0);
    --dec $count
}

--connection node_2
set global wsrep_slave_threads=2;

--connection node_1
--let $count = 100
while ($count)
{
    --eval DELETE FROM ggp1 WHERE f1=$count;

--dec $count
}
--enable_query_log

--connection node_2
set global wsrep_slave_threads=DEFAULT;

SELECT * FROM ggp1;
SELECT * FROM gp2;
SELECT * FROM gp1;
SELECT * FROM p1;
SELECT * FROM p2;
SELECT * FROM c;

--connection node_1
DROP TABLE c;
DROP TABLE p1,p2;
DROP TABLE gp1,gp2;
DROP TABLE ggp1;