~drizzle-trunk/drizzle/development

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#
# test of left outer join for tests that depends on innodb
#

--source include/have_innodb.inc

#
# Test for bug #17164: ORed FALSE blocked conversion of outer join into join
# 

CREATE TABLE t1 (id int(11) NOT NULL PRIMARY KEY, name varchar(20),
                 INDEX (name)) ENGINE=InnoDB;
CREATE TABLE t2 (id int(11) NOT NULL PRIMARY KEY, fkey int(11),
                 FOREIGN KEY (fkey) REFERENCES t2(id)) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1,'A1'),(2,'A2'),(3,'B');
INSERT INTO t2 VALUES (1,1),(2,2),(3,2),(4,3),(5,3);

EXPLAIN
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id 
  WHERE t1.name LIKE 'A%';

EXPLAIN
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id 
  WHERE t1.name LIKE 'A%' OR FALSE;

DROP TABLE t1,t2;