Added tests to cover more server code

Author: Stewart Smith

mysql-test/r/alter_table.result:
  Testing of ALTER TABLE .. DROP DEFAULT
mysql-test/r/limit.result:
  Testing of LIMIT ... OFFSET
mysql-test/t/alter_table.test:
  Testing of ALTER TABLE .. DROP DEFAULT
mysql-test/t/limit.test:
  Testing of LIMIT ... OFFSET

mysql-test/r/alter_table.result

@@ -1268,4 +1268,21 @@ a	b
 4	b
 5	a
 DROP TABLE t1;
+SET @save_sql_mode=@@sql_mode;
+SET sql_mode=strict_all_tables;
+CREATE TABLE t1 (a int NOT NULL default 42);
+INSERT INTO t1 values ();
+SELECT * FROM t1;
+a
+42
+ALTER TABLE t1 ALTER COLUMN a DROP DEFAULT;
+INSERT INTO t1 values ();
+ERROR HY000: Field 'a' doesn't have a default value
+INSERT INTO t1 (a) VALUES (11);
+SELECT * FROM t1 ORDER BY a;
+a
+11
+42
+DROP TABLE t1;
+SET @@sql_mode=@save_sql_mode;
 End of 5.1 tests

mysql-test/r/limit.result

@@ -113,4 +113,36 @@ ERROR HY000: Incorrect arguments to EXECUTE
 End of 5.0 tests
 select 1 as a limit 4294967296,10;
 a
+CREATE TABLE t1 (a int PRIMARY KEY auto_increment);
+INSERT INTO t1 VALUES (),(),(),(),(),(),(),(),(),();
+INSERT INTO t1 VALUES (),(),(),(),(),(),(),(),(),();
+SELECT a FROM t1 ORDER BY a LIMIT 10 OFFSET 1;
+a
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+SELECT a FROM t1 ORDER BY a LIMIT 10 OFFSET 10;
+a
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+SELECT a FROM t1 ORDER BY a LIMIT 2 OFFSET 14;
+a
+15
+16
+DROP TABLE t1;
 End of 5.1 tests

mysql-test/t/alter_table.test

@@ -1000,4 +1000,22 @@ ALTER TABLE t1 MODIFY b ENUM('a', 'z', 'b', 'c') NOT NULL;
 SELECT * FROM t1;
 DROP TABLE t1;
 
+#
+# Test for ALTER column DROP DEFAULT
+#
+
+SET @save_sql_mode=@@sql_mode;
+SET sql_mode=strict_all_tables;
+
+CREATE TABLE t1 (a int NOT NULL default 42);
+INSERT INTO t1 values ();
+SELECT * FROM t1;
+ALTER TABLE t1 ALTER COLUMN a DROP DEFAULT;
+--error 1364
+INSERT INTO t1 values ();
+INSERT INTO t1 (a) VALUES (11);
+SELECT * FROM t1 ORDER BY a;
+DROP TABLE t1;
+SET @@sql_mode=@save_sql_mode;
+
 --echo End of 5.1 tests

mysql-test/t/limit.test

@@ -102,4 +102,16 @@ execute s using @a, @a;
 
 select 1 as a limit 4294967296,10;
 
+#
+# Test for LIMIT X OFFSET Y
+#
+
+CREATE TABLE t1 (a int PRIMARY KEY auto_increment);
+INSERT INTO t1 VALUES (),(),(),(),(),(),(),(),(),();
+INSERT INTO t1 VALUES (),(),(),(),(),(),(),(),(),();
+SELECT a FROM t1 ORDER BY a LIMIT 10 OFFSET 1;
+SELECT a FROM t1 ORDER BY a LIMIT 10 OFFSET 10;
+SELECT a FROM t1 ORDER BY a LIMIT 2 OFFSET 14;
+DROP TABLE t1;
+
 --echo End of 5.1 tests