Merge kboortz@bk-internal.mysql.com:/home/bk/mysql-5.0

into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new

include/my_pthread.h

@@ -332,12 +332,14 @@ int sigwait(sigset_t *setp, int *sigp);		/* Use our implemention */
   we want to make sure that no such flags are set.
 */
 #if defined(HAVE_SIGACTION) && !defined(my_sigset)
-#define my_sigset(A,B) do { struct sigaction s; sigset_t set;              \
+#define my_sigset(A,B) do { struct sigaction s; sigset_t set; int rc;      \
+                            DBUG_ASSERT((A) != 0);                         \
                             sigemptyset(&set);                             \
                             s.sa_handler = (B);                            \
                             s.sa_mask    = set;                            \
                             s.sa_flags   = 0;                              \
-                            sigaction((A), &s, (struct sigaction *) NULL); \
+                            rc= sigaction((A), &s, (struct sigaction *) NULL);\
+                            DBUG_ASSERT(rc == 0);                          \
                           } while (0)
 #elif defined(HAVE_SIGSET) && !defined(my_sigset)
 #define my_sigset(A,B) sigset((A),(B))

include/sslopt-longopts.h

@@ -20,12 +20,6 @@
    "Enable SSL for connection (automatically enabled with other flags). Disable with --skip-ssl.",
  (gptr*) &opt_use_ssl, (gptr*) &opt_use_ssl, 0, GET_BOOL, NO_ARG, 0, 0, 0,
    0, 0, 0},
-  {"ssl-key", OPT_SSL_KEY, "X509 key in PEM format (implies --ssl).",
-   (gptr*) &opt_ssl_key, (gptr*) &opt_ssl_key, 0, GET_STR, REQUIRED_ARG,
-   0, 0, 0, 0, 0, 0},
-  {"ssl-cert", OPT_SSL_CERT, "X509 cert in PEM format (implies --ssl).",
-   (gptr*) &opt_ssl_cert, (gptr*) &opt_ssl_cert, 0, GET_STR, REQUIRED_ARG,
-   0, 0, 0, 0, 0, 0},
   {"ssl-ca", OPT_SSL_CA,
    "CA file in PEM format (check OpenSSL docs, implies --ssl).",
    (gptr*) &opt_ssl_ca, (gptr*) &opt_ssl_ca, 0, GET_STR, REQUIRED_ARG,
@@ -34,9 +28,15 @@
    "CA directory (check OpenSSL docs, implies --ssl).",
    (gptr*) &opt_ssl_capath, (gptr*) &opt_ssl_capath, 0, GET_STR, REQUIRED_ARG,
    0, 0, 0, 0, 0, 0},
+  {"ssl-cert", OPT_SSL_CERT, "X509 cert in PEM format (implies --ssl).",
+   (gptr*) &opt_ssl_cert, (gptr*) &opt_ssl_cert, 0, GET_STR, REQUIRED_ARG,
+   0, 0, 0, 0, 0, 0},
   {"ssl-cipher", OPT_SSL_CIPHER, "SSL cipher to use (implies --ssl).",
    (gptr*) &opt_ssl_cipher, (gptr*) &opt_ssl_cipher, 0, GET_STR, REQUIRED_ARG,
    0, 0, 0, 0, 0, 0},
+  {"ssl-key", OPT_SSL_KEY, "X509 key in PEM format (implies --ssl).",
+   (gptr*) &opt_ssl_key, (gptr*) &opt_ssl_key, 0, GET_STR, REQUIRED_ARG,
+   0, 0, 0, 0, 0, 0},
 #ifdef MYSQL_CLIENT
   {"ssl-verify-server-cert", OPT_SSL_VERIFY_SERVER_CERT,
    "Verify server's \"Common Name\" in its cert against hostname used when connecting. This option is disabled by default.",

include/sslopt-vars.h

@@ -15,13 +15,18 @@
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
 #ifdef HAVE_OPENSSL
-static my_bool opt_use_ssl  = 0;
-static char *opt_ssl_key    = 0;
-static char *opt_ssl_cert   = 0;
-static char *opt_ssl_ca     = 0;
-static char *opt_ssl_capath = 0;
-static char *opt_ssl_cipher = 0;
+#ifdef SSL_VARS_NOT_STATIC
+#define SSL_STATIC
+#else
+#define SSL_STATIC static
+#endif
+SSL_STATIC my_bool opt_use_ssl  = 0;
+SSL_STATIC char *opt_ssl_ca     = 0;
+SSL_STATIC char *opt_ssl_capath = 0;
+SSL_STATIC char *opt_ssl_cert   = 0;
+SSL_STATIC char *opt_ssl_cipher = 0;
+SSL_STATIC char *opt_ssl_key    = 0;
 #ifdef MYSQL_CLIENT
-static my_bool opt_ssl_verify_server_cert= 0;
+SSL_STATIC my_bool opt_ssl_verify_server_cert= 0;
 #endif
 #endif

mysql-test/r/func_str.result

@@ -1046,4 +1046,10 @@ cast(ltrim('  20.06 ') as decimal(19,2))
 select cast(rtrim(ltrim('  20.06 ')) as decimal(19,2));
 cast(rtrim(ltrim('  20.06 ')) as decimal(19,2))
 20.06
+select conv("18383815659218730760",10,10) + 0;
+conv("18383815659218730760",10,10) + 0
+1.8383815659219e+19
+select "18383815659218730760" + 0;
+"18383815659218730760" + 0
+1.8383815659219e+19
 End of 5.0 tests

mysql-test/r/having.result

@@ -12,7 +12,7 @@ explain extended select count(a) as b from t1 where a=0 having b >=0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
 Warnings:
-Note	1003	select count(`test`.`t1`.`a`) AS `b` from `test`.`t1` where 0 having (count(`test`.`t1`.`a`) >= 0)
+Note	1003	select count(`test`.`t1`.`a`) AS `b` from `test`.`t1` where 0 having (`b` >= 0)
 drop table t1;
 CREATE TABLE t1 (
 raw_id int(10) NOT NULL default '0',

mysql-test/r/join_outer.result

@@ -1151,8 +1151,8 @@ EXPLAIN
 SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id 
 WHERE t1.name LIKE 'A%' OR FALSE;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index	PRIMARY,name	name	23	NULL	3	Using where; Using index
-1	SIMPLE	t2	ref	fkey	fkey	5	test.t1.id	1	Using where; Using index
+1	SIMPLE	t2	index	NULL	fkey	5	NULL	5	Using index
+1	SIMPLE	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.fkey	1	Using where
 DROP TABLE t1,t2;
 DROP VIEW IF EXISTS v1,v2;
 DROP TABLE IF EXISTS t1,t2;
@@ -1176,3 +1176,38 @@ a	b
 3	3
 DROP VIEW v1,v2;
 DROP TABLE t1,t2;
+CREATE TABLE t1 (a int);
+CREATE TABLE t2 (b int);
+INSERT INTO t1 VALUES (1), (2), (3), (4);
+INSERT INTO t2 VALUES (2), (3);
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1);
+a	b
+1	NULL
+2	2
+3	3
+4	NULL
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1 OR 1);
+a	b
+1	NULL
+2	2
+3	3
+4	NULL
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (0 OR 1);
+a	b
+1	NULL
+2	2
+3	3
+4	NULL
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1 OR 2=2);
+a	b
+1	NULL
+2	2
+3	3
+4	NULL
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1 OR 1=0);
+a	b
+1	NULL
+2	2
+3	3
+4	NULL
+DROP TABLE t1,t2;

mysql-test/r/subselect.result

@@ -3177,3 +3177,9 @@ ERROR 42S22: Unknown column 'no_such_column' in 'where clause'
 SELECT * FROM t1 WHERE no_such_column = ANY (SELECT 1);
 ERROR 42S22: Unknown column 'no_such_column' in 'IN/ALL/ANY subquery'
 DROP TABLE t1;
+create table t1 (i int, j bigint);
+insert into t1 values (1, 2), (2, 2), (3, 2);
+select * from (select min(i) from t1 where j=(select * from (select min(j) from t1) t2)) t3;
+min(i)
+1
+drop table t1;

mysql-test/r/variables.result

@@ -639,6 +639,35 @@ select @@version, @@version_comment, @@version_compile_machine,
 @@version_compile_os;
 @@version	@@version_comment	@@version_compile_machine	@@version_compile_os
 #	#	#	#
+select @@basedir, @@datadir, @@tmpdir;
+@@basedir	@@datadir	@@tmpdir
+#	#	#
+show variables like 'basedir';
+Variable_name	Value
+basedir	#
+show variables like 'datadir';
+Variable_name	Value
+datadir	#
+show variables like 'tmpdir';
+Variable_name	Value
+tmpdir	#
+select @@ssl_ca, @@ssl_capath, @@ssl_cert, @@ssl_cipher, @@ssl_key;
+@@ssl_ca	@@ssl_capath	@@ssl_cert	@@ssl_cipher	@@ssl_key
+#	#	#	#	#
+show variables like 'ssl%';
+Variable_name	Value
+ssl_ca	#
+ssl_capath	#
+ssl_cert	#
+ssl_cipher	#
+ssl_key	#
+select @@log_queries_not_using_indexes;
+@@log_queries_not_using_indexes
+0
+show variables like 'log_queries_not_using_indexes';
+Variable_name	Value
+log_queries_not_using_indexes	OFF
+End of 5.0 tests
 set global binlog_cache_size         =@my_binlog_cache_size;
 set global connect_timeout           =@my_connect_timeout;
 set global delayed_insert_timeout    =@my_delayed_insert_timeout;
@@ -666,4 +695,3 @@ set global server_id                 =@my_server_id;
 set global slow_launch_time          =@my_slow_launch_time;
 set global storage_engine            =@my_storage_engine;
 set global thread_cache_size         =@my_thread_cache_size;
-End of 5.0 tests

mysql-test/r/view.result

@@ -2660,3 +2660,37 @@ SELECT * FROM v1;
 id	t	COUNT(*)
 DROP VIEW v1;
 DROP TABLE t1;
+CREATE TABLE t1 (i INT, j BIGINT);
+INSERT INTO t1 VALUES (1, 2), (2, 2), (3, 2);
+CREATE VIEW v1 AS SELECT MIN(j) AS j FROM t1;
+CREATE VIEW v2 AS SELECT MIN(i) FROM t1 WHERE j = ( SELECT * FROM v1 );
+SELECT * FROM v2;
+MIN(i)
+1
+DROP VIEW v2, v1;
+DROP TABLE t1;
+CREATE TABLE t1(
+fName varchar(25) NOT NULL,
+lName varchar(25) NOT NULL,
+DOB date NOT NULL,
+uID int unsigned NOT NULL AUTO_INCREMENT PRIMARY KEY);
+INSERT INTO t1(fName, lName, DOB) VALUES
+('Hank', 'Hill', '1964-09-29'),
+('Tom', 'Adams', '1908-02-14'),
+('Homer', 'Simpson', '1968-03-05');
+CREATE VIEW v1 AS
+SELECT (year(now())-year(DOB)) AS Age
+FROM t1 HAVING Age < 75;
+SHOW CREATE VIEW v1;
+View	Create View
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select sql_no_cache (year(now()) - year(`t1`.`DOB`)) AS `Age` from `t1` having (`Age` < 75)
+SELECT (year(now())-year(DOB)) AS Age FROM t1 HAVING Age < 75;
+Age
+42
+38
+SELECT * FROM v1;
+Age
+42
+38
+DROP VIEW v1;
+DROP TABLE t1;

mysql-test/t/func_str.test

@@ -698,4 +698,10 @@ select cast(rtrim('  20.06 ') as decimal(19,2));
 select cast(ltrim('  20.06 ') as decimal(19,2));
 select cast(rtrim(ltrim('  20.06 ')) as decimal(19,2));
 
+#
+# Bug #13975: "same string" + 0 has 2 different results
+#
+select conv("18383815659218730760",10,10) + 0;
+select "18383815659218730760" + 0;
+
 --echo End of 5.0 tests

mysql-test/t/join_outer.test

@@ -805,3 +805,21 @@ SELECT v1.a, v2. b
 
 DROP VIEW v1,v2;
 DROP TABLE t1,t2;
+
+#
+# Bug 19816: LEFT OUTER JOIN with constant ORed predicates in WHERE clause
+# 
+
+CREATE TABLE t1 (a int);
+CREATE TABLE t2 (b int);
+INSERT INTO t1 VALUES (1), (2), (3), (4);
+INSERT INTO t2 VALUES (2), (3);
+
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1);
+
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1 OR 1);
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (0 OR 1);
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1 OR 2=2);
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1 OR 1=0);
+
+DROP TABLE t1,t2;

mysql-test/t/subselect.test

@@ -2100,3 +2100,12 @@ CREATE VIEW v2 AS SELECT * FROM t1 WHERE no_such_column = (SELECT 1);
 SELECT * FROM t1 WHERE no_such_column = ANY (SELECT 1);
 
 DROP TABLE t1;
+
+#
+# Bug#19077: A nested materialized derived table is used before being populated.
+#
+create table t1 (i int, j bigint);
+insert into t1 values (1, 2), (2, 2), (3, 2);
+select * from (select min(i) from t1 where j=(select * from (select min(j) from t1) t2)) t3;
+drop table t1;
+

mysql-test/t/variables.test

@@ -540,7 +540,42 @@ select @@version, @@version_comment, @@version_compile_machine,
        @@version_compile_os;
 
 #
-# Bug #19263: variables.test doesn't clean up after itself (II/II -- restore)
+# Bug #1039: make tmpdir and datadir available as @@variables (also included
+# basedir)
+#
+# Don't actually output, since it depends on the system
+--replace_column 1 # 2 # 3 #
+select @@basedir, @@datadir, @@tmpdir;
+--replace_column 2 #
+show variables like 'basedir';
+--replace_column 2 #
+show variables like 'datadir';
+--replace_column 2 #
+show variables like 'tmpdir';
+
+#
+# Bug #19606: make ssl settings available via SHOW VARIABLES and @@variables
+# 
+# Don't actually output, since it depends on the system
+--replace_column 1 # 2 # 3 # 4 # 5 #
+select @@ssl_ca, @@ssl_capath, @@ssl_cert, @@ssl_cipher, @@ssl_key;
+--replace_column 2 #
+show variables like 'ssl%';
+
+#
+# Bug #19616: make log_queries_not_using_indexes available in SHOW VARIABLES
+# and as @@log_queries_not_using_indexes
+#
+select @@log_queries_not_using_indexes;
+show variables like 'log_queries_not_using_indexes';
+
+--echo End of 5.0 tests
+
+# This is at the very after the versioned tests, since it involves doing
+# cleanup
+#
+# Bug #19263: variables.test doesn't clean up after itself (II/II --
+# restore)
 #
 set global binlog_cache_size         =@my_binlog_cache_size;
 set global connect_timeout           =@my_connect_timeout;
@@ -569,5 +604,3 @@ set global server_id                 =@my_server_id;
 set global slow_launch_time          =@my_slow_launch_time;
 set global storage_engine            =@my_storage_engine;
 set global thread_cache_size         =@my_thread_cache_size;
-
---echo End of 5.0 tests

mysql-test/t/view.test

@@ -2528,3 +2528,42 @@ SELECT * FROM v1;
 
 DROP VIEW v1;
 DROP TABLE t1;
+
+#
+# Bug#19077: A nested materialized view is used before being populated.
+#
+CREATE TABLE t1 (i INT, j BIGINT);
+INSERT INTO t1 VALUES (1, 2), (2, 2), (3, 2);
+CREATE VIEW v1 AS SELECT MIN(j) AS j FROM t1;
+CREATE VIEW v2 AS SELECT MIN(i) FROM t1 WHERE j = ( SELECT * FROM v1 );
+SELECT * FROM v2;
+DROP VIEW v2, v1;
+DROP TABLE t1;
+
+#
+# Bug #19573: VIEW with HAVING that refers an alias name
+# 
+
+CREATE TABLE t1(
+  fName varchar(25) NOT NULL,
+  lName varchar(25) NOT NULL,
+  DOB date NOT NULL,
+  uID int unsigned NOT NULL AUTO_INCREMENT PRIMARY KEY);
+ 
+INSERT INTO t1(fName, lName, DOB) VALUES
+  ('Hank', 'Hill', '1964-09-29'),
+  ('Tom', 'Adams', '1908-02-14'),
+  ('Homer', 'Simpson', '1968-03-05');
+
+CREATE VIEW v1 AS
+  SELECT (year(now())-year(DOB)) AS Age
+    FROM t1 HAVING Age < 75; 
+SHOW CREATE VIEW v1;           
+
+SELECT (year(now())-year(DOB)) AS Age FROM t1 HAVING Age < 75;
+SELECT * FROM v1;
+
+DROP VIEW v1;
+DROP TABLE t1;
+
+

sql/item.cc

@@ -304,6 +304,7 @@ Item::Item():
   marker= 0;
   maybe_null=null_value=with_sum_func=unsigned_flag=0;
   decimals= 0; max_length= 0;
+  with_subselect= 0;
 
   /* Put item in free list so that we can free all items at end */
   THD *thd= current_thd;
@@ -4840,7 +4841,16 @@ void Item_ref::cleanup()
 void Item_ref::print(String *str)
 {
   if (ref)
-    (*ref)->print(str);
+  {
+    if ((*ref)->type() != Item::CACHE_ITEM && ref_type() != VIEW_REF &&
+        name && alias_name_used)
+    {
+      THD *thd= current_thd;
+      append_identifier(thd, str, name, (uint) strlen(name));
+    }
+    else
+      (*ref)->print(str);
+  }
   else
     Item_ident::print(str);
 }

sql/item.h

@@ -460,6 +460,9 @@ public:
   my_bool is_autogenerated_name;        /* indicate was name of this Item
                                            autogenerated or set by user */
   DTCollation collation;
+  my_bool with_subselect;               /* If this item is a subselect or some
+                                           of its arguments is or contains a
+                                           subselect */
 
   // alloc & destruct is done as start of select using sql_alloc
   Item();

sql/item_cmpfunc.cc

@@ -204,10 +204,28 @@ longlong Item_func_nop_all::val_int()
 
 
 /*
-  Convert a constant expression or string to an integer.
-  This is done when comparing DATE's of different formats and
-  also when comparing bigint to strings (in which case the string
-  is converted once to a bigint).
+  Convert a constant item to an int and replace the original item
+
+  SYNOPSIS
+    convert_constant_item()
+    thd             thread handle
+    field           item will be converted using the type of this field
+    item  [in/out]  reference to the item to convert
+
+  DESCRIPTION
+    The function converts a constant expression or string to an integer.
+    On successful conversion the original item is substituted for the
+    result of the item evaluation.
+    This is done when comparing DATE/TIME of different formats and
+    also when comparing bigint to strings (in which case strings
+    are converted to bigints).
+
+  NOTES
+    This function is called only at prepare stage.
+    As all derived tables are filled only after all derived tables
+    are prepared we do not evaluate items with subselects here because
+    they can contain derived tables and thus we may attempt to use a
+    table that has not been populated yet.
 
   RESULT VALUES
   0	Can't convert item
@@ -216,7 +234,7 @@ longlong Item_func_nop_all::val_int()
 
 static bool convert_constant_item(THD *thd, Field *field, Item **item)
 {
-  if ((*item)->const_item())
+  if (!(*item)->with_subselect && (*item)->const_item())
   {
     /* For comparison purposes allow invalid dates like 2000-01-32 */
     ulong orig_sql_mode= field->table->in_use->variables.sql_mode;
@@ -2570,7 +2588,9 @@ Item_cond::fix_fields(THD *thd, Item **ref)
 	(item= *li.ref())->check_cols(1))
       return TRUE; /* purecov: inspected */
     used_tables_cache|=     item->used_tables();
-    if (!item->const_item())
+    if (item->const_item())
+      and_tables_cache= (table_map) 0;
+    else
     {
       tmp_table_map= item->not_null_tables();
       not_null_tables_cache|= tmp_table_map;
@@ -2578,6 +2598,7 @@ Item_cond::fix_fields(THD *thd, Item **ref)
       const_item_cache= FALSE;
     }  
     with_sum_func=	    with_sum_func || item->with_sum_func;
+    with_subselect|=        item->with_subselect;
     if (item->maybe_null)
       maybe_null=1;
   }

sql/item_func.cc

@@ -184,6 +184,7 @@ Item_func::fix_fields(THD *thd, Item **ref)
       used_tables_cache|=     item->used_tables();
       not_null_tables_cache|= item->not_null_tables();
       const_item_cache&=      item->const_item();
+      with_subselect|=        item->with_subselect;
     }
   }
   fix_length_and_dec();

sql/item_strfunc.h

@@ -542,7 +542,7 @@ public:
   void fix_length_and_dec()
   {
     collation.set(default_charset());
-    decimals=0; max_length=64;
+    max_length= 64;
   }
 };
 

sql/item_subselect.cc

@@ -39,6 +39,7 @@ Item_subselect::Item_subselect():
   engine(0), old_engine(0), used_tables_cache(0), have_to_be_excluded(0),
   const_item_cache(1), engine_changed(0), changed(0)
 {
+  with_subselect= 1;
   reset();
   /*
     item value is NULL if select_subselect not changed this value

sql/mysql_priv.h

@@ -1179,6 +1179,7 @@ extern my_bool locked_in_memory;
 extern bool opt_using_transactions, mysqld_embedded;
 extern bool using_update_log, opt_large_files, server_id_supplied;
 extern bool opt_log, opt_update_log, opt_bin_log, opt_slow_log, opt_error_log;
+extern my_bool opt_log_queries_not_using_indexes;
 extern bool opt_disable_networking, opt_skip_show_db;
 extern my_bool opt_character_set_client_handshake;
 extern bool volatile abort_loop, shutdown_in_progress, grant_option;

sql/mysqld.cc

@@ -311,7 +311,6 @@ static bool volatile ready_to_exit;
 static my_bool opt_debugging= 0, opt_external_locking= 0, opt_console= 0;
 static my_bool opt_bdb, opt_isam, opt_ndbcluster;
 static my_bool opt_short_log_format= 0;
-static my_bool opt_log_queries_not_using_indexes= 0;
 static uint kill_cached_threads, wake_thread;
 static ulong killed_threads, thread_created;
 static ulong max_used_connections;
@@ -337,6 +336,7 @@ static my_bool opt_sync_bdb_logs;
 /* Global variables */
 
 bool opt_log, opt_update_log, opt_bin_log, opt_slow_log;
+my_bool opt_log_queries_not_using_indexes= 0;
 bool opt_error_log= IF_WIN(1,0);
 bool opt_disable_networking=0, opt_skip_show_db=0;
 my_bool opt_character_set_client_handshake= 1;
@@ -603,6 +603,7 @@ my_bool opt_enable_shared_memory;
 HANDLE smem_event_connect_request= 0;
 #endif
 
+#define SSL_VARS_NOT_STATIC
 #include "sslopt-vars.h"
 #ifdef HAVE_OPENSSL
 #include <openssl/crypto.h>
@@ -954,7 +955,8 @@ static void __cdecl kill_server(int sig_ptr)
     RETURN_FROM_KILL_SERVER;
   kill_in_progress=TRUE;
   abort_loop=1;					// This should be set
-  my_sigset(sig,SIG_IGN);
+  if (sig != 0) // 0 is not a valid signal number
+    my_sigset(sig,SIG_IGN);
   if (sig == MYSQL_KILL_SIGNAL || sig == 0)
     sql_print_information(ER(ER_NORMAL_SHUTDOWN),my_progname);
   else

sql/set_var.cc

@@ -122,6 +122,7 @@ static byte *get_error_count(THD *thd);
 static byte *get_warning_count(THD *thd);
 static byte *get_prepared_stmt_count(THD *thd);
 static byte *get_have_innodb(THD *thd);
+static byte *get_tmpdir(THD *thd);
 
 /*
   Variable definition list
@@ -138,6 +139,7 @@ sys_var_thd_ulong	sys_auto_increment_offset("auto_increment_offset",
 sys_var_bool_ptr	sys_automatic_sp_privileges("automatic_sp_privileges",
 					      &sp_automatic_privileges);
 
+sys_var_const_str       sys_basedir("basedir", mysql_home);
 sys_var_long_ptr	sys_binlog_cache_size("binlog_cache_size",
 					      &binlog_cache_size);
 sys_var_thd_ulong	sys_bulk_insert_buff_size("bulk_insert_buffer_size",
@@ -161,6 +163,7 @@ sys_var_long_ptr	sys_concurrent_insert("concurrent_insert",
                                               &myisam_concurrent_insert);
 sys_var_long_ptr	sys_connect_timeout("connect_timeout",
 					    &connect_timeout);
+sys_var_const_str       sys_datadir("datadir", mysql_real_data_home);
 sys_var_enum		sys_delay_key_write("delay_key_write",
 					    &delay_key_write_options,
 					    &delay_key_write_typelib,
@@ -208,6 +211,9 @@ sys_trust_routine_creators("log_bin_trust_routine_creators",
 sys_var_bool_ptr
 sys_trust_function_creators("log_bin_trust_function_creators",
                             &trust_function_creators);
+sys_var_bool_ptr
+  sys_log_queries_not_using_indexes("log_queries_not_using_indexes",
+                                    &opt_log_queries_not_using_indexes);
 sys_var_thd_ulong	sys_log_warnings("log_warnings", &SV::log_warnings);
 sys_var_thd_ulong	sys_long_query_time("long_query_time",
 					     &SV::long_query_time);
@@ -331,6 +337,7 @@ sys_var_thd_ulong	sys_query_alloc_block_size("query_alloc_block_size",
 sys_var_thd_ulong	sys_query_prealloc_size("query_prealloc_size",
 						&SV::query_prealloc_size,
 						0, fix_thd_mem_root);
+sys_var_readonly        sys_tmpdir("tmpdir", OPT_GLOBAL, SHOW_CHAR, get_tmpdir);
 sys_var_thd_ulong	sys_trans_alloc_block_size("transaction_alloc_block_size",
 						   &SV::trans_alloc_block_size,
 						   0, fix_trans_mem_root);
@@ -367,6 +374,21 @@ sys_var_thd_ulong	sys_sort_buffer("sort_buffer_size",
 					&SV::sortbuff_size);
 sys_var_thd_sql_mode    sys_sql_mode("sql_mode",
                                      &SV::sql_mode);
+#ifdef HAVE_OPENSSL
+extern char *opt_ssl_ca, *opt_ssl_capath, *opt_ssl_cert, *opt_ssl_cipher,
+            *opt_ssl_key;
+sys_var_const_str_ptr	sys_ssl_ca("ssl_ca", &opt_ssl_ca);
+sys_var_const_str_ptr	sys_ssl_capath("ssl_capath", &opt_ssl_capath);
+sys_var_const_str_ptr	sys_ssl_cert("ssl_cert", &opt_ssl_cert);
+sys_var_const_str_ptr	sys_ssl_cipher("ssl_cipher", &opt_ssl_cipher);
+sys_var_const_str_ptr	sys_ssl_key("ssl_key", &opt_ssl_key);
+#else
+sys_var_const_str	sys_ssl_ca("ssl_ca", NULL);
+sys_var_const_str	sys_ssl_capath("ssl_capath", NULL);
+sys_var_const_str	sys_ssl_cert("ssl_cert", NULL);
+sys_var_const_str	sys_ssl_cipher("ssl_cipher", NULL);
+sys_var_const_str	sys_ssl_key("ssl_key", NULL);
+#endif
 sys_var_thd_enum
 sys_updatable_views_with_limit("updatable_views_with_limit",
                                &SV::updatable_views_with_limit,
@@ -582,6 +604,7 @@ sys_var *sys_variables[]=
   &sys_auto_increment_offset,
   &sys_autocommit,
   &sys_automatic_sp_privileges,
+  &sys_basedir,
   &sys_big_tables,
   &sys_big_selects,
   &sys_binlog_cache_size,
@@ -600,6 +623,7 @@ sys_var *sys_variables[]=
   &sys_completion_type,
   &sys_concurrent_insert,
   &sys_connect_timeout,
+  &sys_datadir,
   &sys_date_format,
   &sys_datetime_format,
   &sys_div_precincrement,
@@ -631,6 +655,7 @@ sys_var *sys_variables[]=
   &sys_local_infile,
   &sys_log_binlog,
   &sys_log_off,
+  &sys_log_queries_not_using_indexes,
   &sys_log_update,
   &sys_log_warnings,
   &sys_long_query_time,
@@ -710,6 +735,11 @@ sys_var *sys_variables[]=
   &sys_sql_mode,
   &sys_sql_warnings,
   &sys_sql_notes,
+  &sys_ssl_ca,
+  &sys_ssl_capath,
+  &sys_ssl_cert,
+  &sys_ssl_cipher,
+  &sys_ssl_key,
   &sys_storage_engine,
 #ifdef HAVE_REPLICATION
   &sys_sync_binlog_period,
@@ -724,6 +754,7 @@ sys_var *sys_variables[]=
   &sys_timed_mutexes,
   &sys_timestamp,
   &sys_time_zone,
+  &sys_tmpdir,
   &sys_tmp_table_size,
   &sys_trans_alloc_block_size,
   &sys_trans_prealloc_size,
@@ -775,7 +806,7 @@ struct show_var_st init_vars[]= {
   {"auto_increment_offset",   (char*) &sys_auto_increment_offset, SHOW_SYS},
   {sys_automatic_sp_privileges.name,(char*) &sys_automatic_sp_privileges,       SHOW_SYS},
   {"back_log",                (char*) &back_log,                    SHOW_LONG},
-  {"basedir",                 mysql_home,                           SHOW_CHAR},
+  {sys_basedir.name,          (char*) &sys_basedir,                 SHOW_SYS},
 #ifdef HAVE_BERKELEY_DB
   {"bdb_cache_size",          (char*) &berkeley_cache_size,         SHOW_LONG},
   {"bdb_home",                (char*) &berkeley_home,               SHOW_CHAR_PTR},
@@ -801,7 +832,7 @@ struct show_var_st init_vars[]= {
   {sys_completion_type.name,  (char*) &sys_completion_type,	    SHOW_SYS},
   {sys_concurrent_insert.name,(char*) &sys_concurrent_insert,       SHOW_SYS},
   {sys_connect_timeout.name,  (char*) &sys_connect_timeout,         SHOW_SYS},
-  {"datadir",                 mysql_real_data_home,                 SHOW_CHAR},
+  {sys_datadir.name,          (char*) &sys_datadir,                 SHOW_SYS},
   {sys_date_format.name,      (char*) &sys_date_format,		    SHOW_SYS},
   {sys_datetime_format.name,  (char*) &sys_datetime_format,	    SHOW_SYS},
   {sys_default_week_format.name, (char*) &sys_default_week_format,  SHOW_SYS},
@@ -899,6 +930,8 @@ struct show_var_st init_vars[]= {
   {"log_bin",                 (char*) &opt_bin_log,                 SHOW_BOOL},
   {sys_trust_function_creators.name,(char*) &sys_trust_function_creators, SHOW_SYS},
   {"log_error",               (char*) log_error_file,               SHOW_CHAR},
+  {sys_log_queries_not_using_indexes.name,
+    (char*) &sys_log_queries_not_using_indexes, SHOW_SYS},
 #ifdef HAVE_REPLICATION
   {"log_slave_updates",       (char*) &opt_log_slave_updates,       SHOW_MY_BOOL},
 #endif
@@ -1017,6 +1050,11 @@ struct show_var_st init_vars[]= {
   {sys_sql_mode.name,         (char*) &sys_sql_mode,                SHOW_SYS},
   {"sql_notes",               (char*) &sys_sql_notes,               SHOW_SYS},
   {"sql_warnings",            (char*) &sys_sql_warnings,            SHOW_SYS},
+  {sys_ssl_ca.name,           (char*) &sys_ssl_ca,                  SHOW_SYS},
+  {sys_ssl_capath.name,       (char*) &sys_ssl_capath,              SHOW_SYS},
+  {sys_ssl_cert.name,         (char*) &sys_ssl_cert,                SHOW_SYS},
+  {sys_ssl_cipher.name,       (char*) &sys_ssl_cipher,              SHOW_SYS},
+  {sys_ssl_key.name,          (char*) &sys_ssl_key,                 SHOW_SYS},
   {sys_storage_engine.name,   (char*) &sys_storage_engine,          SHOW_SYS},
 #ifdef HAVE_REPLICATION
   {sys_sync_binlog_period.name,(char*) &sys_sync_binlog_period,     SHOW_SYS},
@@ -1037,7 +1075,7 @@ struct show_var_st init_vars[]= {
   {"time_zone",               (char*) &sys_time_zone,               SHOW_SYS},
   {sys_timed_mutexes.name,    (char*) &sys_timed_mutexes,       SHOW_SYS},
   {sys_tmp_table_size.name,   (char*) &sys_tmp_table_size,	    SHOW_SYS},
-  {"tmpdir",                  (char*) &opt_mysql_tmpdir,            SHOW_CHAR_PTR},
+  {sys_tmpdir.name,           (char*) &sys_tmpdir,	            SHOW_SYS},
   {sys_trans_alloc_block_size.name, (char*) &sys_trans_alloc_block_size,
    SHOW_SYS},
   {sys_trans_prealloc_size.name, (char*) &sys_trans_prealloc_size,  SHOW_SYS},
@@ -2863,6 +2901,31 @@ static byte *get_prepared_stmt_count(THD *thd)
   return (byte*) &thd->sys_var_tmp.ulong_value;
 }
 
+
+/*
+  Get the tmpdir that was specified or chosen by default
+
+  SYNOPSIS
+    get_tmpdir()
+    thd		thread handle
+
+  DESCRIPTION
+    This is necessary because if the user does not specify a temporary
+    directory via the command line, one is chosen based on the environment
+    or system defaults.  But we can't just always use mysql_tmpdir, because
+    that is actually a call to my_tmpdir() which cycles among possible
+    temporary directories.
+
+  RETURN VALUES
+    ptr		pointer to NUL-terminated string
+ */
+static byte *get_tmpdir(THD *thd)
+{
+  if (opt_mysql_tmpdir)
+    return (byte *)opt_mysql_tmpdir;
+  return (byte*)mysql_tmpdir;
+}
+
 /****************************************************************************
   Main handling of variables:
   - Initialisation

sql/set_var.h

@@ -222,6 +222,35 @@ public:
 };
 
 
+class sys_var_const_str_ptr :public sys_var
+{
+public:
+  char **value;					// Pointer to const value
+  sys_var_const_str_ptr(const char *name_arg, char **value_arg)
+    :sys_var(name_arg),value(value_arg)
+  {}
+  bool check(THD *thd, set_var *var)
+  {
+    return 1;
+  }
+  bool update(THD *thd, set_var *var)
+  {
+    return 1;
+  }
+  SHOW_TYPE type() { return SHOW_CHAR; }
+  byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
+  {
+    return (byte*) *value;
+  }
+  bool check_update_type(Item_result type)
+  {
+    return 1;
+  }
+  bool check_default(enum_var_type type) { return 1; }
+  bool is_readonly() const { return 1; }
+};
+
+
 class sys_var_enum :public sys_var
 {
   uint	*value;