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+#
+# 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;