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Fixed an unlikely optimizer bug that casued a core dump in pt_range.cc::sel_cmp()

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mysql-test/r/join.result:
  Test of range optimizer bug
mysql-test/t/join.test:
  Test of range optimizer bug
sql/sql_rename.cc:
  Added missing DEBUG_PRINT()
This commit is contained in:
unknown
2003-03-07 14:40:37 +02:00
parent 5861dc5b8b
commit 157b36675e
4 changed files with 38 additions and 6 deletions
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4
mysql-test/r/join.result
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@ -37,3 +37,7 @@ COUNT(t1.Title)
t1_id t2_id type cost_unit min_value max_value t3_id item_id id name
22 1 Percent Cost 100 -1 6 291 1 s1
23 1 Percent Cost 100 -1 21 291 1 s1
rate_code base_rate
cust 20
rate_code base_rate
cust 20

24
mysql-test/t/join.test
View File

@ -219,3 +219,27 @@ CREATE TABLE t2 (
INSERT INTO t2 VALUES (1,'s1'),(2,'s2'),(3,'s3'),(4,'s4'),(5,'s5');
select t1.*, t2.* from t1, t2 where t2.id=t1.t2_id limit 2;
drop table t1,t2;
#
# Bug in range optimiser with MAYBE_KEY
#
CREATE TABLE t1 (
siteid varchar(25) NOT NULL default '',
emp_id varchar(30) NOT NULL default '',
rate_code varchar(10) default NULL,
UNIQUE KEY site_emp (siteid,emp_id),
KEY siteid (siteid)
) TYPE=MyISAM;
INSERT INTO t1 VALUES ('rivercats','psmith','cust'), ('rivercats','KWalker','cust');
CREATE TABLE t2 (
siteid varchar(25) NOT NULL default '',
rate_code varchar(10) NOT NULL default '',
base_rate float NOT NULL default '0',
PRIMARY KEY (siteid,rate_code),
FULLTEXT KEY rate_code (rate_code)
) TYPE=MyISAM;
INSERT INTO t2 VALUES ('rivercats','cust',20);
SELECT emp.rate_code, lr.base_rate FROM t1 AS emp LEFT JOIN t2 AS lr USING (siteid, rate_code) WHERE emp.emp_id = 'psmith' AND lr.siteid = 'rivercats';
SELECT emp.rate_code, lr.base_rate FROM t1 AS emp LEFT JOIN t2 AS lr USING (siteid, rate_code) WHERE lr.siteid = 'rivercats' AND emp.emp_id = 'psmith';
drop table t1,t2;