diff options
Diffstat (limited to 'mysql-test/t/func_str.test')
| -rw-r--r-- | mysql-test/t/func_str.test | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test index 8753db0ebe1..45415882ac7 100644 --- a/mysql-test/t/func_str.test +++ b/mysql-test/t/func_str.test @@ -753,4 +753,31 @@ select cast(rtrim(ltrim(' 20.06 ')) as decimal(19,2)); select conv("18383815659218730760",10,10) + 0; select "18383815659218730760" + 0; +# +# Bug #21698: substitution of a string field for a constant under a function +# + +CREATE TABLE t1 (code varchar(10)); +INSERT INTO t1 VALUES ('a12'), ('A12'), ('a13'); + +SELECT ASCII(code), code FROM t1 WHERE code='A12'; +SELECT ASCII(code), code FROM t1 WHERE code='A12' AND ASCII(code)=65; + +INSERT INTO t1 VALUES ('a12 '), ('A12 '); + +SELECT LENGTH(code), code FROM t1 WHERE code='A12'; +SELECT LENGTH(code), code FROM t1 WHERE code='A12' AND LENGTH(code)=5; + +ALTER TABLE t1 ADD INDEX (code); +CREATE TABLE t2 (id varchar(10) PRIMARY KEY); +INSERT INTO t2 VALUES ('a11'), ('a12'), ('a13'), ('a14'); + +SELECT * FROM t1 INNER JOIN t2 ON t1.code=t2.id + WHERE t2.id='a12' AND (LENGTH(code)=5 OR code < 'a00'); +EXPLAIN EXTENDED +SELECT * FROM t1 INNER JOIN t2 ON code=id + WHERE id='a12' AND (LENGTH(code)=5 OR code < 'a00'); + +DROP TABLE t1,t2; + --echo End of 5.0 tests |