# # Bug when using comparions of strings and integers. # --disable_warnings drop table if exists t1; --enable_warnings CREATE TABLE t1 (id CHAR(12) not null, PRIMARY KEY (id)); insert into t1 values ('000000000001'),('000000000002'); explain select * from t1 where id=000000000001; select * from t1 where id=000000000001; delete from t1 where id=000000000002; select * from t1; drop table t1; # # Check the following: # "a" == "a " # "a\0" < "a" # "a\0" < "a " SELECT 'a' = 'a '; SELECT 'a\0' < 'a'; SELECT 'a\0' < 'a '; SELECT 'a\t' < 'a'; SELECT 'a\t' < 'a '; CREATE TABLE t1 (a char(10) not null); INSERT INTO t1 VALUES ('a'),('a\0'),('a\t'),('a '); SELECT hex(a),STRCMP(a,'a'), STRCMP(a,'a ') FROM t1; DROP TABLE t1; # Bug #8134: Comparison against CHAR(31) at end of string SELECT CHAR(31) = '', '' = CHAR(31); # Extra test SELECT CHAR(30) = '', '' = CHAR(30); # End of 4.1 tests # #Bug #21159: Optimizer: wrong result after AND with different data types # create table t1 (a tinyint(1),b binary(1)); insert into t1 values (0x01,0x01); select * from t1 where a=b; select * from t1 where a=b and b=0x01; drop table if exists t1; # # Bug #31887: DML Select statement not returning same results when executed # in version 5 # CREATE TABLE t1 (b int(2) zerofill, c int(2) zerofill); INSERT INTO t1 (b,c) VALUES (1,2), (1,1), (2,2); SELECT CONCAT(b,c), CONCAT(b,c) = '0101' FROM t1; EXPLAIN EXTENDED SELECT b,c FROM t1 WHERE b = 1 AND CONCAT(b,c) = '0101'; SELECT b,c FROM t1 WHERE b = 1 AND CONCAT(b,c) = '0101'; CREATE TABLE t2 (a int); INSERT INTO t2 VALUES (1),(2); SELECT a, (SELECT COUNT(*) FROM t1 WHERE b = t2.a AND CONCAT(b,c) = CONCAT('0',t2.a,'01')) x FROM t2 ORDER BY a; EXPLAIN EXTENDED SELECT a, (SELECT COUNT(*) FROM t1 WHERE b = t2.a AND CONCAT(b,c) = CONCAT('0',t2.a,'01')) x FROM t2 ORDER BY a; DROP TABLE t1,t2; # # Bug #39353: Multiple conditions on timestamp column crashes server # CREATE TABLE t1 (a TIMESTAMP); INSERT INTO t1 VALUES (NOW()),(NOW()),(NOW()); SELECT * FROM t1 WHERE a > '2008-01-01' AND a = '0000-00-00'; DROP TABLE t1; --echo End of 5.0 tests # # Bug #11764818 57692: Crash in item_func_in::val_int() with ZEROFILL # CREATE TABLE t1(a INT ZEROFILL); SELECT 1 FROM t1 WHERE t1.a IN (1, t1.a) AND t1.a=2; DROP TABLE t1; # # Check what happens when comparing to long string # CREATE TABLE t1 (a char(2), index (a)); insert into t1 values ("aa"),("bb"); select * from t1 where a="aa"; select * from t1 where a="aaa"; select * from t1 where a="aa "; select * from t1 where a>="aaa"; explain select * from t1 where a="aaa"; explain select * from t1 where a="aa "; drop table t1;