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select.result, select.test:

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Added a test case for bug #7098.
sql_select.cc:
  Fixed bug #7098.
  When a string field was substituted for an equal constant
  the collation of the constant was changed by mistake for 
  the binary collation.
This commit is contained in:
igor@rurik.mysql.com
2005-02-16 21:17:20 -08:00
parent 3261bf189a
commit eedde7ba3e
3 changed files with 45 additions and 0 deletions
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19
mysql-test/t/select.test
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@ -1945,3 +1945,22 @@ EXPLAIN SELECT * FROM t1 LEFT JOIN t2 USE INDEX (a) ON t1.a=t2.a;
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 FORCE INDEX (a) ON t1.a=t2.a;
DROP TABLE t1, t2;
#
# Test case for bug 7098: substitution of a constant for a string field
#
CREATE TABLE t1 ( city char(30) );
INSERT INTO t1 VALUES ('London');
INSERT INTO t1 VALUES ('Paris');
SELECT * FROM t1 WHERE city='London';
SELECT * FROM t1 WHERE city='london';
EXPLAIN SELECT * FROM t1 WHERE city='London' AND city='london';
SELECT * FROM t1 WHERE city='London' AND city='london';
EXPLAIN SELECT * FROM t1 WHERE city LIKE '%london%' AND city='London';
SELECT * FROM t1 WHERE city LIKE '%london%' AND city='London';
DROP TABLE t1;