after merge fixes

mysql-test/r/backup.result

 set SQL_LOG_BIN=0;
-drop table if exists t1;
-create table t1(n int);
-backup table t1 to '../bogus';
+create table t4(n int);
+backup table t4 to '../bogus';
 Table	Op	Msg_type	Msg_text
-test.t1	backup	error	Failed copying .frm file: errno = X
-test.t1	backup	status	Operation failed
-backup table t1 to '../tmp';
+test.t4	backup	error	Failed copying .frm file (errno: X)
+test.t4	backup	status	Operation failed
+backup table t4 to '../tmp';
 Table	Op	Msg_type	Msg_text
-test.t1	backup	status	OK
-drop table t1;
-restore table t1 from '../tmp';
+test.t4	backup	status	OK
+backup table t4 to '../tmp';
 Table	Op	Msg_type	Msg_text
-test.t1	restore	status	OK
-select count(*) from t1;
+test.t4	backup	error	Failed copying .frm file (errno: X)
+test.t4	backup	status	Operation failed
+drop table t4;
+restore table t4 from '../tmp';
+Table	Op	Msg_type	Msg_text
+test.t4	restore	status	OK
+select count(*) from t4;
 count(*)
 0
+create table t1(n int);
 insert into t1 values (23),(45),(67);
 backup table t1 to '../tmp';
 Table	Op	Msg_type	Msg_text
@@ -35,9 +39,8 @@ create table t2(m int not null primary key);
 create table t3(k int not null primary key);
 insert into t2 values (123),(145),(167);
 insert into t3 values (223),(245),(267);
-backup table t1,t2,t3 to '../tmp';
+backup table t2,t3 to '../tmp';
 Table	Op	Msg_type	Msg_text
-test.t1	backup	status	OK
 test.t2	backup	status	OK
 test.t3	backup	status	OK
 drop table t1,t2,t3;
@@ -61,13 +64,14 @@ k
 223
 245
 267
-drop table t1,t2,t3;
+drop table t1,t2,t3,t4;
 restore table t1 from '../tmp';
 Table	Op	Msg_type	Msg_text
 test.t1	restore	status	OK
-lock tables t1 write;
-backup table t1 to '../tmp';
+rename table t1 to t5;
+lock tables t5 write;
+backup table t5 to '../tmp';
 unlock tables;
 Table	Op	Msg_type	Msg_text
-test.t1	backup	status	OK
-drop table t1;
+test.t5	backup	status	OK
+drop table t5;

mysql-test/r/delete.result

@@ -24,3 +24,18 @@ create table t1 (a bigint not null, primary key (a,a,a,a,a,a,a,a,a,a));
 insert into t1 values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
 delete from t1 where a=27;
 drop table t1;
+CREATE TABLE t1 (
+bool     char(0) default NULL,
+not_null varchar(20) binary NOT NULL default '',
+misc     integer not null,
+PRIMARY KEY  (not_null)
+) TYPE=MyISAM;
+INSERT INTO t1 VALUES (NULL,'a',4), (NULL,'b',5), (NULL,'c',6), (NULL,'d',7);
+select * from t1 where misc > 5 and bool is null;
+bool	not_null	misc
+NULL	c	6
+NULL	d	7
+delete   from t1 where misc > 5 and bool is null;
+select * from t1 where misc > 5 and bool is null;
+bool	not_null	misc
+drop table t1;

mysql-test/r/join.result

@@ -251,7 +251,26 @@ t1_id	t2_id	type	cost_unit	min_value	max_value	t3_id	item_id	id	name
 22	1	Percent	Cost	100	-1	6	291	1	s1
 23	1	Percent	Cost	100	-1	21	291	1	s1
 drop table t1,t2;
+CREATE TABLE t1 (
+siteid varchar(25) NOT NULL default '',
+emp_id varchar(30) NOT NULL default '',
+rate_code varchar(10) default NULL,
+UNIQUE KEY site_emp (siteid,emp_id),
+KEY siteid (siteid)
+) TYPE=MyISAM;
+INSERT INTO t1 VALUES ('rivercats','psmith','cust'), ('rivercats','KWalker','cust');
+CREATE TABLE t2 (
+siteid varchar(25) NOT NULL default '',
+rate_code varchar(10) NOT NULL default '',
+base_rate float NOT NULL default '0',
+PRIMARY KEY  (siteid,rate_code),
+FULLTEXT KEY rate_code (rate_code)
+) TYPE=MyISAM;
+INSERT INTO t2 VALUES ('rivercats','cust',20);
+SELECT emp.rate_code, lr.base_rate FROM t1 AS emp LEFT JOIN t2 AS lr USING (siteid, rate_code) WHERE emp.emp_id = 'psmith' AND lr.siteid = 'rivercats';
 rate_code	base_rate
 cust	20
+SELECT emp.rate_code, lr.base_rate FROM t1 AS emp LEFT JOIN t2 AS lr USING (siteid, rate_code) WHERE lr.siteid = 'rivercats' AND emp.emp_id = 'psmith';
 rate_code	base_rate
 cust	20
+drop table t1,t2;

mysql-test/r/type_datetime.result

@@ -78,3 +78,9 @@ EXPLAIN SELECT * FROM t1 WHERE expedition='0001-00-00 00:00:00';
 table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	ref	expedition	expedition	8	const	1	Using where
 drop table t1;
+create table t1 (a datetime not null, b datetime not null);
+insert into t1 values (now(), now());
+insert into t1 values (now(), now());
+select * from t1 where a is null or b is null;
+a	b
+drop table t1;

mysys/my_getopt.c

@@ -431,7 +431,7 @@ int handle_options(int *argc, char ***argv,
   Will set the option value to given value
 */
 
-static int setval (const struct my_option *opts, char *argument,
+static int setval(const struct my_option *opts, char *argument,
 		  my_bool set_maximum_value)
 {
   int err= 0;

sql/mysqld.cc

@@ -3595,8 +3595,8 @@ struct my_option my_long_options[] =
    (gptr*) &my_use_symdir, (gptr*) &my_use_symdir, 0, GET_BOOL, NO_ARG,
    IF_PURIFY(0,1), 0, 0, 0, 0, 0},
 #endif
-  {"user", 'u', "Run mysqld daemon as user", (gptr*) &mysqld_user,
-   (gptr*) &mysqld_user, 0, 0, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
+  {"user", 'u', "Run mysqld daemon as user", 0, 0, 0, GET_STR, REQUIRED_ARG,
+   0, 0, 0, 0, 0, 0},
   {"version", 'V', "Output version information and exit", 0, 0, 0, GET_NO_ARG,
    NO_ARG, 0, 0, 0, 0, 0, 0},
   {"version", 'v', "Synonym for option -v", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
@@ -4221,9 +4221,9 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     break;
   case 'u':
     if (!mysqld_user)
-      mysqld_user=optarg;
+      mysqld_user= argument;
     else
-      fprintf(stderr, "Warning: Ignoring user change to '%s' becasue the user is set to '%s' earlier on the command line\n", optarg, mysqld_user);
+      fprintf(stderr, "Warning: Ignoring user change to '%s' becasue the user is set to '%s' earlier on the command line\n", argument, mysqld_user);
     break;
   case 'L':
     strmake(language, argument, sizeof(language)-1);