5.3 merge

extra/yassl/taocrypt/include/misc.hpp

@@ -136,9 +136,13 @@ void CleanUp();
 
 // Turn on ia32 ASM for Big Integer
 // CodeWarrior defines _MSC_VER
+//
+// Do not use assembler with GCC, as the implementation for it is broken;
+// it does not use proper GCC asm contraints and makes assumptions about
+// frame pointers and so on, which breaks depending on GCC version and
+// optimization level.
 #if !defined(TAOCRYPT_DISABLE_X86ASM) && ((defined(_MSC_VER) && \
-   !defined(__MWERKS__) && defined(_M_IX86)) || \
-   (defined(__GNUC__) && defined(__i386__)))
+   !defined(__MWERKS__) && defined(_M_IX86)))
     #define TAOCRYPT_X86ASM_AVAILABLE
 #endif
 

mysql-test/r/derived_view.result

@@ -1687,6 +1687,7 @@ SELECT t.b, t.c, t1.a
 FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
 WHERE t.b AND t.c = t1.a;
 b	c	a
+8	c	c
 EXPLAIN EXTENDED
 SELECT t.b, t.c, t1.a
 FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
@@ -1701,6 +1702,7 @@ SELECT t.b, t.c, t1.a
 FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
 WHERE t.b <> 0 AND t.c = t1.a;
 b	c	a
+8	c	c
 INSERT INTO t3 VALUES (100), (200);
 EXPLAIN EXTENDED
 SELECT t.b, t.c, t1.a
@@ -1716,7 +1718,7 @@ SELECT t.b, t.c, t1.a
 FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
 WHERE t.b AND t.c = t1.a;
 b	c	a
-NULL	NULL	c
+8	c	c
 EXPLAIN EXTENDED
 SELECT t.b, t.c, t1.a
 FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
@@ -1731,7 +1733,7 @@ SELECT t.b, t.c, t1.a
 FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
 WHERE t.b <> 0 AND t.c = t1.a;
 b	c	a
-NULL	NULL	c
+8	c	c
 SET optimizer_switch=@save_optimizer_switch;
 DROP TABLE t1,t2,t3;
 #

mysql-test/r/join_cache.result

@@ -5589,4 +5589,52 @@ set join_buffer_size=default;
 set join_cache_level=default;
 set optimizer_switch=@tmp_optimizer_switch;
 DROP TABLE t1,t2,t3;
+#
+# Bug #1058071: LEFT JOIN using blobs 
+# (mdev-564)    when join buffer size is small 
+#
+CREATE TABLE t1 (
+col269 decimal(31,10) unsigned DEFAULT NULL,
+col280 multipoint DEFAULT NULL,
+col281 tinyint(1) DEFAULT NULL,
+col282 time NOT NULL,
+col284 datetime DEFAULT NULL,
+col286 date DEFAULT NULL,
+col287 datetime DEFAULT NULL,
+col288 decimal(30,29) DEFAULT NULL,
+col291 time DEFAULT NULL,
+col292 time DEFAULT NULL
+) ENGINE=Aria;
+INSERT INTO t1 VALUES
+(0.0,PointFromText('POINT(9 0)'),0,'11:24:05','2013-04-14 21:30:28',NULL,'2011-12-20 06:00:34',9.9,'13:04:39',NULL),
+(0.0,NULL,127,'05:43:12','2012-09-05 06:15:27','2027-01-01','2011-10-29 10:48:29',0.0,'06:24:05','11:33:37'),
+(0.0,NULL,127,'12:54:41','2013-01-12 11:32:58','2011-11-03','2013-01-03 02:00:34',00,'11:54:15','20:19:15'),
+(0.0,PointFromText('POINT(9 0)'),0,'19:48:07','2012-07-16 15:45:25','2012-03-25','2013-09-07 17:21:52',0.5,'17:36:54','21:24:19'),
+(0.0,PointFromText('POINT(9 0)'),0,'03:43:48','2012-09-28 00:00:00','2012-06-26','2011-11-16 05:01:09',00,'01:25:42','19:30:06'),
+(0.0,LineStringFromText('LINESTRING(0 0,9 9,0 0,9 0,0 0)'),127,'11:33:21','2012-03-31 10:29:22','2012-10-10','2012-04-21 19:21:06',NULL,'05:13:22','09:48:34'),
+(NULL,PointFromText('POINT(9 0)'),127,'00:00:00','0000-00-00','2012-04-04 21:26:12','2013-03-04',0.0,'12:54:30',NULL),
+(NULL,PointFromText('POINT(9 0)'),1,'00:00:00','2013-05-01 22:37:49','2013-06-26','2012-09-22 17:31:03',0.0,'08:09:57','11:15:36');
+Warnings:
+Note	1265	Data truncated for column 'col286' at row 7
+CREATE TABLE t2 (b int) ENGINE=Aria;
+INSERT INTO t2 VALUES (NULL);
+CREATE TABLE t3 (c int) ENGINE=Aria;
+INSERT INTO t3 VALUES (NULL);
+set @tmp_optimizer_switch=@@optimizer_switch;
+set optimizer_switch = 'outer_join_with_cache=on,join_cache_incremental=on';
+set join_buffer_size=128;
+EXPLAIN
+SELECT 1 AS c FROM t1 NATURAL LEFT JOIN t2 LEFT OUTER JOIN t3 ON 1
+GROUP BY elt(t1.col282,1,t1.col280);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	8	Using temporary; Using filesort
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (incremental, BNL join)
+SELECT 1 AS c FROM t1 NATURAL LEFT JOIN t2 LEFT OUTER JOIN t3 ON 1
+GROUP BY elt(t1.col282,1,t1.col280);
+c
+1
+set join_buffer_size=default;
+set optimizer_switch=@tmp_optimizer_switch;
+DROP table t1,t2,t3;
 set @@optimizer_switch=@save_optimizer_switch;

mysql-test/r/mysqld--help.result

@@ -204,6 +204,10 @@ The following options may be given as the first argument:
  -?, --help          Display this help and exit.
  --ignore-builtin-innodb 
  Disable initialization of builtin InnoDB plugin
+ --ignore-db-dirs=name 
+ Specifies a directory to add to the ignore list when
+ collecting database names from the datadir. Put a blank
+ argument to reset the list accumulated so far.
  --init-connect=name Command(s) that are executed for each new connection
  (unless the user has SUPER privilege)
  --init-file=name    Read SQL commands from this file at startup
@@ -909,6 +913,7 @@ general-log FALSE
 group-concat-max-len 1024
 help TRUE
 ignore-builtin-innodb FALSE
+ignore-db-dirs 
 init-connect 
 init-file (No default value)
 init-rpl-role MASTER

mysql-test/r/select.result

@@ -4887,7 +4887,7 @@ CREATE TABLE t5 (f1 int) ;
 INSERT INTO t5 VALUES (20),(5);
 CREATE TABLE t6(f1 int);
 INSERT INTO t6 VALUES (9),(7);
-SET SESSION join_buffer_size = 2048;
+SET SESSION join_buffer_size = 2176;
 EXPLAIN
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -4901,50 +4901,50 @@ SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
 f1	f1	f1	f1	f2	f1	f1
 3	9	NULL	NULL	NULL	20	9
 7	9	NULL	NULL	NULL	20	9
-3	9	NULL	NULL	NULL	20	7
-7	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	5	7
-7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	20	9
 3	9	NULL	NULL	NULL	20	9
-18	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	20	7
-18	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	5	9
-18	9	NULL	NULL	NULL	5	7
-3	9	NULL	NULL	NULL	5	7
 7	9	NULL	NULL	NULL	20	9
-18	9	NULL	NULL	NULL	20	9
+3	9	NULL	NULL	NULL	20	7
 7	9	NULL	NULL	NULL	20	7
 18	9	NULL	NULL	NULL	20	7
-7	9	NULL	NULL	NULL	5	9
-18	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	7
-18	9	NULL	NULL	NULL	5	7
-3	9	NULL	NULL	NULL	20	9
-7	9	NULL	NULL	NULL	20	9
 3	9	NULL	NULL	NULL	20	7
 7	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	5	7
-7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	20	9
 3	9	NULL	NULL	NULL	20	9
+3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	5	9
 18	9	NULL	NULL	NULL	20	7
 3	9	NULL	NULL	NULL	20	7
+3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	5	7
+18	9	NULL	NULL	NULL	5	7
+3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	5	9
 18	9	NULL	NULL	NULL	5	9
 3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	20	9
+3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	5	7
 3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	20	7
+18	9	NULL	NULL	NULL	20	9
+3	9	NULL	NULL	NULL	20	9
 7	9	NULL	NULL	NULL	20	9
 18	9	NULL	NULL	NULL	20	9
+7	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	20	7
+3	9	NULL	NULL	NULL	20	7
 7	9	NULL	NULL	NULL	20	7
 18	9	NULL	NULL	NULL	20	7
+7	9	NULL	NULL	NULL	5	7
+18	9	NULL	NULL	NULL	5	9
+3	9	NULL	NULL	NULL	5	9
 7	9	NULL	NULL	NULL	5	9
 18	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	5	7
+3	9	NULL	NULL	NULL	5	7
 7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	5	7
 SET SESSION join_buffer_size = DEFAULT;

mysql-test/r/select_jcl6.result

@@ -4898,7 +4898,7 @@ CREATE TABLE t5 (f1 int) ;
 INSERT INTO t5 VALUES (20),(5);
 CREATE TABLE t6(f1 int);
 INSERT INTO t6 VALUES (9),(7);
-SET SESSION join_buffer_size = 2048;
+SET SESSION join_buffer_size = 2176;
 EXPLAIN
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -4913,48 +4913,48 @@ f1	f1	f1	f1	f2	f1	f1
 3	9	NULL	NULL	NULL	20	9
 7	9	NULL	NULL	NULL	20	9
 18	9	NULL	NULL	NULL	20	9
-3	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	9
-18	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	20	7
-7	9	NULL	NULL	NULL	20	7
-18	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	5	7
-7	9	NULL	NULL	NULL	5	7
-18	9	NULL	NULL	NULL	5	7
 3	9	NULL	NULL	NULL	20	9
 7	9	NULL	NULL	NULL	20	9
 18	9	NULL	NULL	NULL	20	9
-3	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	9
-18	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	20	7
-7	9	NULL	NULL	NULL	20	7
-18	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	5	7
-7	9	NULL	NULL	NULL	5	7
-18	9	NULL	NULL	NULL	5	7
 3	9	NULL	NULL	NULL	20	9
 7	9	NULL	NULL	NULL	20	9
 18	9	NULL	NULL	NULL	20	9
-3	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	9
-18	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	20	7
-7	9	NULL	NULL	NULL	20	7
-18	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	5	7
-7	9	NULL	NULL	NULL	5	7
-18	9	NULL	NULL	NULL	5	7
 3	9	NULL	NULL	NULL	20	9
 7	9	NULL	NULL	NULL	20	9
 18	9	NULL	NULL	NULL	20	9
 3	9	NULL	NULL	NULL	5	9
 7	9	NULL	NULL	NULL	5	9
 18	9	NULL	NULL	NULL	5	9
+3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	5	9
+3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	5	9
+3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	5	9
 3	9	NULL	NULL	NULL	20	7
 7	9	NULL	NULL	NULL	20	7
 18	9	NULL	NULL	NULL	20	7
+3	9	NULL	NULL	NULL	20	7
+7	9	NULL	NULL	NULL	20	7
+18	9	NULL	NULL	NULL	20	7
+3	9	NULL	NULL	NULL	20	7
+7	9	NULL	NULL	NULL	20	7
+18	9	NULL	NULL	NULL	20	7
+3	9	NULL	NULL	NULL	20	7
+7	9	NULL	NULL	NULL	20	7
+18	9	NULL	NULL	NULL	20	7
+3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	5	7
+18	9	NULL	NULL	NULL	5	7
+3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	5	7
+18	9	NULL	NULL	NULL	5	7
+3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	5	7
+18	9	NULL	NULL	NULL	5	7
 3	9	NULL	NULL	NULL	5	7
 7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	5	7

mysql-test/r/select_pkeycache.result

@@ -4887,7 +4887,7 @@ CREATE TABLE t5 (f1 int) ;
 INSERT INTO t5 VALUES (20),(5);
 CREATE TABLE t6(f1 int);
 INSERT INTO t6 VALUES (9),(7);
-SET SESSION join_buffer_size = 2048;
+SET SESSION join_buffer_size = 2176;
 EXPLAIN
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -4901,50 +4901,50 @@ SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
 f1	f1	f1	f1	f2	f1	f1
 3	9	NULL	NULL	NULL	20	9
 7	9	NULL	NULL	NULL	20	9
-3	9	NULL	NULL	NULL	20	7
-7	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	5	7
-7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	20	9
 3	9	NULL	NULL	NULL	20	9
-18	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	20	7
-18	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	5	9
-18	9	NULL	NULL	NULL	5	7
-3	9	NULL	NULL	NULL	5	7
 7	9	NULL	NULL	NULL	20	9
-18	9	NULL	NULL	NULL	20	9
+3	9	NULL	NULL	NULL	20	7
 7	9	NULL	NULL	NULL	20	7
 18	9	NULL	NULL	NULL	20	7
-7	9	NULL	NULL	NULL	5	9
-18	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	7
-18	9	NULL	NULL	NULL	5	7
-3	9	NULL	NULL	NULL	20	9
-7	9	NULL	NULL	NULL	20	9
 3	9	NULL	NULL	NULL	20	7
 7	9	NULL	NULL	NULL	20	7
-3	9	NULL	NULL	NULL	5	9
-7	9	NULL	NULL	NULL	5	9
-3	9	NULL	NULL	NULL	5	7
-7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	20	9
 3	9	NULL	NULL	NULL	20	9
+3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	5	9
 18	9	NULL	NULL	NULL	20	7
 3	9	NULL	NULL	NULL	20	7
+3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	5	7
+18	9	NULL	NULL	NULL	5	7
+3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	5	9
 18	9	NULL	NULL	NULL	5	9
 3	9	NULL	NULL	NULL	5	9
+7	9	NULL	NULL	NULL	20	9
+3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	5	7
 3	9	NULL	NULL	NULL	5	7
+7	9	NULL	NULL	NULL	20	7
+18	9	NULL	NULL	NULL	20	9
+3	9	NULL	NULL	NULL	20	9
 7	9	NULL	NULL	NULL	20	9
 18	9	NULL	NULL	NULL	20	9
+7	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	20	7
+3	9	NULL	NULL	NULL	20	7
 7	9	NULL	NULL	NULL	20	7
 18	9	NULL	NULL	NULL	20	7
+7	9	NULL	NULL	NULL	5	7
+18	9	NULL	NULL	NULL	5	9
+3	9	NULL	NULL	NULL	5	9
 7	9	NULL	NULL	NULL	5	9
 18	9	NULL	NULL	NULL	5	9
+18	9	NULL	NULL	NULL	5	7
+3	9	NULL	NULL	NULL	5	7
 7	9	NULL	NULL	NULL	5	7
 18	9	NULL	NULL	NULL	5	7
 SET SESSION join_buffer_size = DEFAULT;

mysql-test/r/subselect.result

@@ -6638,6 +6638,23 @@ a	( 3, 3 ) NOT IN ( SELECT NULL, NULL )
 set optimizer_switch=@mdev367_optimizer_switch;
 DROP TABLE t1;
 #
+# MDEV-521 single value subselect transformation problem
+#
+CREATE TABLE t1 (f1 char(2), PRIMARY KEY (f1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('u1'),('u2');
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+FLUSH TABLES;
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+DROP TABLE t1;
+# return optimizer switch changed in the beginning of this test
+set optimizer_switch=@subselect_tmp;
+#
 # lp:944706 Query with impossible or constant subquery in WHERE or HAVING is not
 # precomputed and thus not part of optimization
 #

mysql-test/r/subselect2.result

@@ -179,4 +179,23 @@ pk	a	b
 SET optimizer_switch=@tmp_optimizer_switch;
 DROP VIEW v1;
 DROP TABLE t1,t2,t3;
+#
+# MDEV-567: Wrong result from a query with correlated subquery if ICP is allowed
+#
+CREATE TABLE t1 (a int, b int, INDEX idx(a));
+INSERT INTO t1 VALUES (9,0), (7,1), (1,9), (7,3), (2,1);
+CREATE TABLE t2 (a int, b int, INDEX idx(a));
+INSERT INTO t2 VALUES (2,1), (6,4), (7,6), (9,4);
+CREATE TABLE t3 (a int, b int);
+INSERT INTO t3 VALUES (1,0), (1,1), (1,3);
+SELECT * FROM t3
+WHERE a = (SELECT COUNT(DISTINCT t2.b) FROM t1, t2
+WHERE t1.a = t2.a AND t2.a BETWEEN 7 AND 9
+AND t3.b = t1.b
+GROUP BY t1.b);
+a	b
+1	0
+1	1
+1	3
+DROP TABLE t1, t2, t3;
 set optimizer_switch=@subselect2_test_tmp;

mysql-test/r/subselect_no_mat.result

@@ -6637,6 +6637,23 @@ a	( 3, 3 ) NOT IN ( SELECT NULL, NULL )
 set optimizer_switch=@mdev367_optimizer_switch;
 DROP TABLE t1;
 #
+# MDEV-521 single value subselect transformation problem
+#
+CREATE TABLE t1 (f1 char(2), PRIMARY KEY (f1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('u1'),('u2');
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+FLUSH TABLES;
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+DROP TABLE t1;
+# return optimizer switch changed in the beginning of this test
+set optimizer_switch=@subselect_tmp;
+#
 # lp:944706 Query with impossible or constant subquery in WHERE or HAVING is not
 # precomputed and thus not part of optimization
 #

mysql-test/r/subselect_no_opts.result

@@ -6633,6 +6633,23 @@ a	( 3, 3 ) NOT IN ( SELECT NULL, NULL )
 set optimizer_switch=@mdev367_optimizer_switch;
 DROP TABLE t1;
 #
+# MDEV-521 single value subselect transformation problem
+#
+CREATE TABLE t1 (f1 char(2), PRIMARY KEY (f1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('u1'),('u2');
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+FLUSH TABLES;
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+DROP TABLE t1;
+# return optimizer switch changed in the beginning of this test
+set optimizer_switch=@subselect_tmp;
+#
 # lp:944706 Query with impossible or constant subquery in WHERE or HAVING is not
 # precomputed and thus not part of optimization
 #

mysql-test/r/subselect_no_scache.result

@@ -6644,6 +6644,23 @@ a	( 3, 3 ) NOT IN ( SELECT NULL, NULL )
 set optimizer_switch=@mdev367_optimizer_switch;
 DROP TABLE t1;
 #
+# MDEV-521 single value subselect transformation problem
+#
+CREATE TABLE t1 (f1 char(2), PRIMARY KEY (f1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('u1'),('u2');
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+FLUSH TABLES;
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+DROP TABLE t1;
+# return optimizer switch changed in the beginning of this test
+set optimizer_switch=@subselect_tmp;
+#
 # lp:944706 Query with impossible or constant subquery in WHERE or HAVING is not
 # precomputed and thus not part of optimization
 #

mysql-test/r/subselect_no_semijoin.result

@@ -6633,6 +6633,23 @@ a	( 3, 3 ) NOT IN ( SELECT NULL, NULL )
 set optimizer_switch=@mdev367_optimizer_switch;
 DROP TABLE t1;
 #
+# MDEV-521 single value subselect transformation problem
+#
+CREATE TABLE t1 (f1 char(2), PRIMARY KEY (f1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('u1'),('u2');
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+FLUSH TABLES;
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+DROP TABLE t1;
+# return optimizer switch changed in the beginning of this test
+set optimizer_switch=@subselect_tmp;
+#
 # lp:944706 Query with impossible or constant subquery in WHERE or HAVING is not
 # precomputed and thus not part of optimization
 #

mysql-test/r/view.result

@@ -4530,6 +4530,55 @@ WHERE t4.a >= v1.a);
 a	a
 DROP VIEW v1;
 DROP TABLE t1,t2,t3,t4;
+#
+# LP bug #823237: dependent subquery with LEFT JOIN
+#                 referencing view in WHERE
+# (duplicate of LP bug #823189)
+# 
+CREATE TABLE t1 (a int);
+CREATE TABLE t2 ( b int, d int, e int);
+INSERT INTO t2 VALUES (7,8,0);
+CREATE TABLE t3 ( c int);
+INSERT INTO t3 VALUES (0);
+CREATE TABLE t4 (a int, b int, c int);
+INSERT INTO t4 VALUES (93,1,0), (95,NULL,0);
+CREATE VIEW v4 AS SELECT * FROM t4;
+EXPLAIN EXTENDED
+SELECT * FROM t3 , t4 
+WHERE t4.c <= (SELECT t2.e FROM t2 LEFT JOIN t1 ON ( t1.a = t2.d )
+WHERE t2.b > t4.b);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	system	NULL	NULL	NULL	NULL	1	100.00	
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	DEPENDENT SUBQUERY	t2	system	NULL	NULL	NULL	NULL	1	100.00	
+2	DEPENDENT SUBQUERY	t1	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1276	Field or reference 'test.t4.b' of SELECT #2 was resolved in SELECT #1
+Note	1003	select 0 AS `c`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t4`.`c` AS `c` from `test`.`t4` where (`test`.`t4`.`c` <= <expr_cache><`test`.`t4`.`b`>((select 0 from dual where (7 > `test`.`t4`.`b`))))
+SELECT * FROM t3 , t4 
+WHERE t4.c <= (SELECT t2.e FROM t2 LEFT JOIN t1 ON ( t1.a = t2.d )
+WHERE t2.b > t4.b);
+c	a	b	c
+0	93	1	0
+EXPLAIN EXTENDED
+SELECT * FROM t3, v4 
+WHERE v4.c <= (SELECT t2.e FROM t2 LEFT JOIN t1 ON ( t1.a = t2.d )
+WHERE t2.b > v4.b);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	system	NULL	NULL	NULL	NULL	1	100.00	
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	DEPENDENT SUBQUERY	t2	system	NULL	NULL	NULL	NULL	1	100.00	
+2	DEPENDENT SUBQUERY	t1	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1276	Field or reference 'v4.b' of SELECT #2 was resolved in SELECT #1
+Note	1003	select 0 AS `c`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t4`.`c` AS `c` from `test`.`t4` where (`test`.`t4`.`c` <= <expr_cache><`test`.`t4`.`b`>((select 0 from dual where (7 > `test`.`t4`.`b`))))
+SELECT * FROM t3, v4 
+WHERE v4.c <= (SELECT t2.e FROM t2 LEFT JOIN t1 ON ( t1.a = t2.d )
+WHERE t2.b > v4.b);
+c	a	b	c
+0	93	1	0
+DROP VIEW v4;
+DROP TABLE t1,t2,t3,t4;
 drop table if exists t_9801;
 drop view if exists v_9801;
 create table t_9801 (s1 int);
@@ -4730,6 +4779,49 @@ id	id	bbb	iddqd	val1
 30631	NULL	NULL	NULL	NULL
 drop view v2;
 drop table t1,t2;
+#
+# MDEV-589 (LP BUG#1007647) :
+# Assertion `vcol_table == 0 || vcol_table == table' failed in
+# fill_record(THD*, List<Item>&, List<Item>&, bool)
+#
+CREATE TABLE t1 (f1 INT, f2 INT);
+CREATE TABLE t2 (f1 INT, f2 INT);
+CREATE ALGORITHM=MERGE VIEW v1 AS SELECT a1.f1, a2.f2 FROM t1 AS a1, t1 AS a2;
+CREATE ALGORITHM=MERGE VIEW v2 AS SELECT * FROM v1;
+CREATE ALGORITHM=MERGE VIEW v3 AS SELECT a1.f1, a2.f2 FROM t1 AS a1, t2 AS a2;
+CREATE ALGORITHM=MERGE VIEW v4 AS SELECT * FROM v3;
+INSERT INTO v3 (f1, f2) VALUES (1, 2);
+ERROR HY000: Can not modify more than one base table through a join view 'test.v3'
+INSERT INTO v1 (f1, f2) VALUES (1, 2);
+ERROR HY000: Can not modify more than one base table through a join view 'test.v1'
+INSERT INTO v4 (f1, f2) VALUES (1, 2);
+ERROR HY000: Can not modify more than one base table through a join view 'test.v4'
+INSERT INTO v2 (f1, f2) VALUES (1, 2);
+ERROR HY000: Can not modify more than one base table through a join view 'test.v2'
+drop view v4,v3,v2,v1;
+drop table t1,t2;
+#
+# MDEV-3799 fix of above bugfix (MDEV-589) 
+# Wrong result (NULLs instead of real values) with RIGHT JOIN
+# in a FROM subquery and derived_merge=on
+#
+CREATE TABLE t1 (f1 INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (4),(6);
+CREATE TABLE t2 (f2 INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (7),(8);
+SELECT * FROM (  
+SELECT * FROM t1 RIGHT JOIN t2 ON f1 = f2
+) AS alias;
+f1	f2
+NULL	7
+NULL	8
+SELECT * FROM (  
+SELECT * FROM t2 LEFT JOIN t1 ON f1 = f2
+) AS alias;
+f2	f1
+7	NULL
+8	NULL
+drop tables t1,t2;
 # -----------------------------------------------------------------
 # -- End of 5.3 tests.
 # -----------------------------------------------------------------

mysql-test/suite/plugins/r/pam.result

@@ -4,7 +4,7 @@ create user pam_test;
 grant proxy on pam_test to test_pam;
 #
 # athentication is successful, challenge/pin are ok
-# note that current_user() differts from user()
+# note that current_user() differs from user()
 #
 Challenge input first.
 Enter: not very secret challenge

mysql-test/suite/plugins/t/pam.test

@@ -26,7 +26,7 @@ EOF
 
 --echo #
 --echo # athentication is successful, challenge/pin are ok
---echo # note that current_user() differts from user()
+--echo # note that current_user() differs from user()
 --echo #
 --exec $MYSQL_TEST -u test_pam --plugin-dir=$plugindir < $MYSQLTEST_VARDIR/tmp/pam_good.txt
 

mysql-test/suite/sys_vars/r/ignore_db_dirs_basic.result

@@ -0,0 +1,49 @@
+select @@ignore_db_dirs;
+@@ignore_db_dirs
+e,lost+found,.mysqlgui,ignored_db
+# Check that SHOW DATABASES ignores all directories from
+# @@ignore_db_dirs and all directories with names starting
+# with '.'
+SHOW DATABASES;
+Database
+information_schema
+#mysql50#.otherdir
+mtr
+mysql
+performance_schema
+test
+USE ignored_db;
+ERROR 42000: Incorrect database name 'ignored_db'
+SELECT * FROM ignored_db.t1;
+ERROR 42000: Incorrect database name 'ignored_db'
+CALL ignored_db.p1();
+ERROR 42000: Incorrect database name 'ignored_db'
+SELECT COUNT(*) FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME='ignored_db';
+COUNT(*)
+1
+CREATE DATABASE ignored_db;
+ERROR 42000: Incorrect database name 'ignored_db'
+CREATE DATABASE `lost+found`;
+USE `lost+found`;
+CREATE TABLE t1(id INT);
+INSERT INTO t1 VALUES (1), (2);
+SELECT * FROM `lost+found`.t1;
+id
+1
+2
+SHOW DATABASES;
+Database
+information_schema
+#mysql50#.otherdir
+lost+found
+mtr
+mysql
+performance_schema
+test
+DROP DATABASE `lost+found`;
+SET @@global.ignore_db_dirs = 'aha';
+ERROR HY000: Variable 'ignore_db_dirs' is a read only variable
+SET @@local.ignore_db_dirs = 'aha';
+ERROR HY000: Variable 'ignore_db_dirs' is a read only variable
+SET @@ignore_db_dirs = 'aha';
+ERROR HY000: Variable 'ignore_db_dirs' is a read only variable

mysql-test/suite/sys_vars/t/ignore_db_dirs_basic-master.opt

@@ -0,0 +1,11 @@
+--ignore-db-dir=a
+--ignore-db-dir=b
+--ignore-db-dir=c
+--ignore-db-dir=
+--ignore-db-dir=d
+--ignore-db-dir x
+--ignore-db-dir=
+--ignore-db-dir=e
+--ignore-db-dir=lost+found
+--ignore-db-dir=.mysqlgui
+--ignore-db-dir=ignored_db

mysql-test/suite/sys_vars/t/ignore_db_dirs_basic.test

@@ -0,0 +1,38 @@
+select @@ignore_db_dirs;
+let $MYSQLD_DATADIR= `select @@datadir`;
+
+mkdir $MYSQLD_DATADIR/.mysqlgui;
+mkdir $MYSQLD_DATADIR/.otherdir;
+mkdir $MYSQLD_DATADIR/lost+found;
+mkdir $MYSQLD_DATADIR/ignored_db;
+--echo # Check that SHOW DATABASES ignores all directories from
+--echo # @@ignore_db_dirs and all directories with names starting
+--echo # with '.'
+SHOW DATABASES;
+--error ER_WRONG_DB_NAME
+USE ignored_db;
+--error ER_WRONG_DB_NAME
+SELECT * FROM ignored_db.t1;
+--error ER_WRONG_DB_NAME
+CALL ignored_db.p1();
+SELECT COUNT(*) FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME='ignored_db';
+--error ER_WRONG_DB_NAME
+CREATE DATABASE ignored_db;
+CREATE DATABASE `lost+found`;
+USE `lost+found`;
+CREATE TABLE t1(id INT);
+INSERT INTO t1 VALUES (1), (2);
+SELECT * FROM `lost+found`.t1;
+SHOW DATABASES;
+DROP DATABASE `lost+found`;
+rmdir $MYSQLD_DATADIR/.mysqlgui;
+rmdir $MYSQLD_DATADIR/.otherdir;
+rmdir $MYSQLD_DATADIR/lost+found;
+rmdir $MYSQLD_DATADIR/ignored_db;
+
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SET @@global.ignore_db_dirs = 'aha';
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SET @@local.ignore_db_dirs = 'aha';
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SET @@ignore_db_dirs = 'aha';

mysql-test/t/join_cache.test

@@ -3587,5 +3587,54 @@ set optimizer_switch=@tmp_optimizer_switch;
 
 DROP TABLE t1,t2,t3;
 
+--echo #
+--echo # Bug #1058071: LEFT JOIN using blobs 
+--echo # (mdev-564)    when join buffer size is small 
+--echo #
+
+CREATE TABLE t1 (
+  col269 decimal(31,10) unsigned DEFAULT NULL,
+  col280 multipoint DEFAULT NULL,
+  col281 tinyint(1) DEFAULT NULL,
+  col282 time NOT NULL,
+  col284 datetime DEFAULT NULL,
+  col286 date DEFAULT NULL,
+  col287 datetime DEFAULT NULL,
+  col288 decimal(30,29) DEFAULT NULL,
+  col291 time DEFAULT NULL,
+  col292 time DEFAULT NULL
+) ENGINE=Aria;
+
+INSERT INTO t1 VALUES
+(0.0,PointFromText('POINT(9 0)'),0,'11:24:05','2013-04-14 21:30:28',NULL,'2011-12-20 06:00:34',9.9,'13:04:39',NULL),
+(0.0,NULL,127,'05:43:12','2012-09-05 06:15:27','2027-01-01','2011-10-29 10:48:29',0.0,'06:24:05','11:33:37'),
+(0.0,NULL,127,'12:54:41','2013-01-12 11:32:58','2011-11-03','2013-01-03 02:00:34',00,'11:54:15','20:19:15'),
+(0.0,PointFromText('POINT(9 0)'),0,'19:48:07','2012-07-16 15:45:25','2012-03-25','2013-09-07 17:21:52',0.5,'17:36:54','21:24:19'),
+(0.0,PointFromText('POINT(9 0)'),0,'03:43:48','2012-09-28 00:00:00','2012-06-26','2011-11-16 05:01:09',00,'01:25:42','19:30:06'),
+(0.0,LineStringFromText('LINESTRING(0 0,9 9,0 0,9 0,0 0)'),127,'11:33:21','2012-03-31 10:29:22','2012-10-10','2012-04-21 19:21:06',NULL,'05:13:22','09:48:34'),
+(NULL,PointFromText('POINT(9 0)'),127,'00:00:00','0000-00-00','2012-04-04 21:26:12','2013-03-04',0.0,'12:54:30',NULL),
+(NULL,PointFromText('POINT(9 0)'),1,'00:00:00','2013-05-01 22:37:49','2013-06-26','2012-09-22 17:31:03',0.0,'08:09:57','11:15:36');
+
+CREATE TABLE t2 (b int) ENGINE=Aria;
+INSERT INTO t2 VALUES (NULL);
+CREATE TABLE t3 (c int) ENGINE=Aria;
+INSERT INTO t3 VALUES (NULL);
+
+set @tmp_optimizer_switch=@@optimizer_switch;
+set optimizer_switch = 'outer_join_with_cache=on,join_cache_incremental=on';
+set join_buffer_size=128;
+
+EXPLAIN
+SELECT 1 AS c FROM t1 NATURAL LEFT JOIN t2 LEFT OUTER JOIN t3 ON 1
+  GROUP BY elt(t1.col282,1,t1.col280);
+
+SELECT 1 AS c FROM t1 NATURAL LEFT JOIN t2 LEFT OUTER JOIN t3 ON 1
+  GROUP BY elt(t1.col282,1,t1.col280);
+
+set join_buffer_size=default;
+set optimizer_switch=@tmp_optimizer_switch;
+
+DROP table t1,t2,t3;
+
 # this must be the last command in the file
 set @@optimizer_switch=@save_optimizer_switch;

mysql-test/t/select.test

@@ -4174,7 +4174,7 @@ INSERT INTO t5 VALUES (20),(5);
 CREATE TABLE t6(f1 int);
 INSERT INTO t6 VALUES (9),(7);
 
-SET SESSION join_buffer_size = 2048;
+SET SESSION join_buffer_size = 2176;
 
 EXPLAIN
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;

mysql-test/t/subselect.test

@@ -5596,6 +5596,22 @@ set optimizer_switch=@mdev367_optimizer_switch;
 
 DROP TABLE t1;
 
+--echo #
+--echo # MDEV-521 single value subselect transformation problem
+--echo #
+CREATE TABLE t1 (f1 char(2), PRIMARY KEY (f1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('u1'),('u2');
+
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+FLUSH TABLES;
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+
+# Cleanup
+DROP TABLE t1;
+
+--echo # return optimizer switch changed in the beginning of this test
+set optimizer_switch=@subselect_tmp;
+
 --echo #
 --echo # lp:944706 Query with impossible or constant subquery in WHERE or HAVING is not
 --echo # precomputed and thus not part of optimization

mysql-test/t/subselect2.test

@@ -203,5 +203,24 @@ SET optimizer_switch=@tmp_optimizer_switch;
 DROP VIEW v1;
 DROP TABLE t1,t2,t3;
 
+--echo #
+--echo # MDEV-567: Wrong result from a query with correlated subquery if ICP is allowed
+--echo #
+CREATE TABLE t1 (a int, b int, INDEX idx(a));
+INSERT INTO t1 VALUES (9,0), (7,1), (1,9), (7,3), (2,1);
+
+CREATE TABLE t2 (a int, b int, INDEX idx(a));
+INSERT INTO t2 VALUES (2,1), (6,4), (7,6), (9,4);
+
+CREATE TABLE t3 (a int, b int);
+INSERT INTO t3 VALUES (1,0), (1,1), (1,3);
+
+SELECT * FROM t3
+  WHERE a = (SELECT COUNT(DISTINCT t2.b) FROM t1, t2
+                WHERE t1.a = t2.a AND t2.a BETWEEN 7 AND 9
+                      AND t3.b = t1.b
+              GROUP BY t1.b);
+DROP TABLE t1, t2, t3;
+
 set optimizer_switch=@subselect2_test_tmp;
 

mysql-test/t/view.test

@@ -4381,6 +4381,46 @@ SELECT * FROM v1, t2
 DROP VIEW v1;
 DROP TABLE t1,t2,t3,t4;
 
+--echo #
+--echo # LP bug #823237: dependent subquery with LEFT JOIN
+--echo #                 referencing view in WHERE
+--echo # (duplicate of LP bug #823189)
+--echo # 
+
+CREATE TABLE t1 (a int);
+
+CREATE TABLE t2 ( b int, d int, e int);
+INSERT INTO t2 VALUES (7,8,0);
+
+CREATE TABLE t3 ( c int);
+INSERT INTO t3 VALUES (0);
+
+CREATE TABLE t4 (a int, b int, c int);
+INSERT INTO t4 VALUES (93,1,0), (95,NULL,0);
+
+CREATE VIEW v4 AS SELECT * FROM t4;
+
+EXPLAIN EXTENDED
+SELECT * FROM t3 , t4 
+  WHERE t4.c <= (SELECT t2.e FROM t2 LEFT JOIN t1 ON ( t1.a = t2.d )
+                   WHERE t2.b > t4.b);
+SELECT * FROM t3 , t4 
+  WHERE t4.c <= (SELECT t2.e FROM t2 LEFT JOIN t1 ON ( t1.a = t2.d )
+                   WHERE t2.b > t4.b);
+
+
+EXPLAIN EXTENDED
+SELECT * FROM t3, v4 
+  WHERE v4.c <= (SELECT t2.e FROM t2 LEFT JOIN t1 ON ( t1.a = t2.d )
+                   WHERE t2.b > v4.b);
+
+SELECT * FROM t3, v4 
+  WHERE v4.c <= (SELECT t2.e FROM t2 LEFT JOIN t1 ON ( t1.a = t2.d )
+                   WHERE t2.b > v4.b);
+
+DROP VIEW v4;
+DROP TABLE t1,t2,t3,t4;
+
 #
 # Bug#9801 (Views: imperfect error message)
 #
@@ -4661,6 +4701,52 @@ create algorithm=MERGE view v2 as select 2 as id, id is null as bbb, id as iddqd
 select t1.*, v2.* from t1 left join v2 on t1.id = v2.id;
 drop view v2;
 drop table t1,t2;
+
+--echo #
+--echo # MDEV-589 (LP BUG#1007647) :
+--echo # Assertion `vcol_table == 0 || vcol_table == table' failed in
+--echo # fill_record(THD*, List<Item>&, List<Item>&, bool)
+--echo #
+CREATE TABLE t1 (f1 INT, f2 INT);
+CREATE TABLE t2 (f1 INT, f2 INT);
+CREATE ALGORITHM=MERGE VIEW v1 AS SELECT a1.f1, a2.f2 FROM t1 AS a1, t1 AS a2;
+CREATE ALGORITHM=MERGE VIEW v2 AS SELECT * FROM v1;
+CREATE ALGORITHM=MERGE VIEW v3 AS SELECT a1.f1, a2.f2 FROM t1 AS a1, t2 AS a2;
+CREATE ALGORITHM=MERGE VIEW v4 AS SELECT * FROM v3;
+--error ER_VIEW_MULTIUPDATE
+INSERT INTO v3 (f1, f2) VALUES (1, 2);
+--error ER_VIEW_MULTIUPDATE
+INSERT INTO v1 (f1, f2) VALUES (1, 2);
+--error ER_VIEW_MULTIUPDATE
+INSERT INTO v4 (f1, f2) VALUES (1, 2);
+--error ER_VIEW_MULTIUPDATE
+INSERT INTO v2 (f1, f2) VALUES (1, 2);
+drop view v4,v3,v2,v1;
+drop table t1,t2;
+
+--echo #
+--echo # MDEV-3799 fix of above bugfix (MDEV-589) 
+--echo # Wrong result (NULLs instead of real values) with RIGHT JOIN
+--echo # in a FROM subquery and derived_merge=on
+--echo #
+
+CREATE TABLE t1 (f1 INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (4),(6);
+
+CREATE TABLE t2 (f2 INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (7),(8);
+
+SELECT * FROM (  
+  SELECT * FROM t1 RIGHT JOIN t2 ON f1 = f2
+) AS alias;
+
+SELECT * FROM (  
+  SELECT * FROM t2 LEFT JOIN t1 ON f1 = f2
+) AS alias;
+
+drop tables t1,t2;
+
+
 --echo # -----------------------------------------------------------------
 --echo # -- End of 5.3 tests.
 --echo # -----------------------------------------------------------------

plugin/auth_pam/mapper/pam_user_map.c

@@ -0,0 +1,93 @@
+/*
+  Pam module to change user names arbitrarily in the pam stack.
+
+  Compile as
+  
+     gcc pam_user_map.c -shared -lpam -fPIC -o pam_user_map.so
+
+  Install as appropriate (for example, in /lib/security/).
+  Add to your /etc/pam.d/mysql (preferrably, at the end) this line:
+=========================================================
+auth            required        pam_user_map.so
+=========================================================
+
+  And create /etc/security/user_map.conf with the desired mapping
+  in the format:  orig_user_name: mapped_user_name
+=========================================================
+#comments and emty lines are ignored
+john: jack
+bob:  admin
+top:  accounting
+=========================================================
+
+*/
+
+#include <stdio.h>
+#include <syslog.h>
+#include <security/pam_modules.h>
+
+#define FILENAME "/etc/security/user_map.conf"
+#define skip(what) while (*s && (what)) s++
+
+int pam_sm_authenticate(pam_handle_t *pamh, int flags,
+    int argc, const char *argv[])
+{
+  int pam_err, line= 0;
+  const char *username;
+  char buf[256];
+  FILE *f;
+
+  f= fopen(FILENAME, "r");
+  if (f == NULL)
+  {
+    pam_syslog(pamh, LOG_ERR, "Cannot open '%s'\n", FILENAME);
+    return PAM_SYSTEM_ERR;
+  }
+
+  pam_err = pam_get_item(pamh, PAM_USER, (const void**)&username);
+  if (pam_err != PAM_SUCCESS)
+    goto ret;
+
+  while (fgets(buf, sizeof(buf), f) != NULL)
+  {
+    char *s= buf, *from, *to, *end_from, *end_to;
+    line++;
+
+    skip(isspace(*s));
+    if (*s == '#' || *s == 0) continue;
+    from= s;
+    skip(isalnum(*s) || (*s == '_'));
+    end_from= s;
+    skip(isspace(*s));
+    if (end_from == from || *s++ != ':') goto syntax_error;
+    skip(isspace(*s));
+    to= s;
+    skip(isalnum(*s) || (*s == '_'));
+    end_to= s;
+    if (end_to == to) goto syntax_error;
+
+    *end_from= *end_to= 0;
+    if (strcmp(username, from) == 0)
+    {
+      pam_err= pam_set_item(pamh, PAM_USER, to);
+      goto ret;
+    }
+  }
+  pam_err= PAM_SUCCESS;
+  goto ret;
+
+syntax_error:
+  pam_syslog(pamh, LOG_ERR, "Syntax error at %s:%d", FILENAME, line);
+  pam_err= PAM_SYSTEM_ERR;
+ret:
+  fclose(f);
+  return pam_err;
+}
+
+int pam_sm_setcred(pam_handle_t *pamh, int flags,
+                   int argc, const char *argv[])
+{
+
+    return PAM_SUCCESS;
+}
+

plugin/auth_pam/testing/pam_mariadb_mtr.c

@@ -12,7 +12,7 @@
   Create /etc/pam.d/mariadb_mtr with
 =========================================================
 auth            required        pam_mariadb_mtr.so pam_test
-account         required        pam_mariadb_mtr.so
+account         required        pam_permit.so
 =========================================================
 */
 
@@ -23,9 +23,8 @@ account         required        pam_mariadb_mtr.so
 
 #define N 3
 
-PAM_EXTERN int
-pam_sm_authenticate(pam_handle_t *pamh, int flags,
-    int argc, const char *argv[])
+int pam_sm_authenticate(pam_handle_t *pamh, int flags,
+                        int argc, const char *argv[])
 {
   struct pam_conv *conv;
   struct pam_response *resp = 0;
@@ -71,17 +70,8 @@ ret:
   return retval;
 }
 
-PAM_EXTERN int
-pam_sm_setcred(pam_handle_t *pamh, int flags,
-    int argc, const char *argv[])
-{
-
-    return PAM_SUCCESS;
-}
-
-PAM_EXTERN int
-pam_sm_acct_mgmt(pam_handle_t *pamh, int flags,
-    int argc, const char *argv[])
+int pam_sm_setcred(pam_handle_t *pamh, int flags,
+                   int argc, const char *argv[])
 {
 
     return PAM_SUCCESS;

scripts/mysql_install_db.sh

@@ -257,7 +257,7 @@ fi
 
 # Now we can get arguments from the groups [mysqld] and [mysql_install_db]
 # in the my.cfg file, then re-run to merge with command line arguments.
-parse_arguments `$print_defaults $defaults mysqld mariadb mysql_install_db client-server`
+parse_arguments `"$print_defaults" $defaults mysqld mariadb mysql_install_db client-server`
 parse_arguments PICK-ARGS-FROM-ARGV "$@"
 
 # Configure paths to support files
@@ -307,7 +307,7 @@ fill_help_tables="$pkgdatadir/fill_help_tables.sql"
 create_system_tables="$pkgdatadir/mysql_system_tables.sql"
 fill_system_tables="$pkgdatadir/mysql_system_tables_data.sql"
 
-for f in $fill_help_tables $create_system_tables $fill_system_tables
+for f in "$fill_help_tables" "$create_system_tables" "$fill_system_tables"
 do
   if test ! -f "$f"
   then
@@ -329,8 +329,10 @@ then
     cannot_find_file "$langdir/errmsg.sys"
     exit 1
   fi
-  mysqld_opt="--lc-messages-dir=$langdir/.."
+else
+  langdir=english
 fi
+mysqld_opt="--lc-messages=$langdir"
 
 # Try to determine the hostname
 hostname=`@HOSTNAME@`
@@ -338,14 +340,14 @@ hostname=`@HOSTNAME@`
 # Check if hostname is valid
 if test "$cross_bootstrap" -eq 0 -a "$in_rpm" -eq 0 -a "$force" -eq 0
 then
-  resolved=`$extra_bindir/resolveip $hostname 2>&1`
+  resolved=`"$extra_bindir/resolveip" $hostname 2>&1`
   if test $? -ne 0
   then
-    resolved=`$extra_bindir/resolveip localhost 2>&1`
+    resolved=`"$extra_bindir/resolveip" localhost 2>&1`
     if test $? -ne 0
     then
       echo "Neither host '$hostname' nor 'localhost' could be looked up with"
-      echo "$extra_bindir/resolveip"
+      echo "'$extra_bindir/resolveip'"
       echo "Please configure the 'hostname' command to return a correct"
       echo "hostname."
       echo "If you want to solve this at a later stage, restart this script"
@@ -368,21 +370,21 @@ then
 fi
 
 # Create database directories
-for dir in $ldata $ldata/mysql $ldata/test
+for dir in "$ldata" "$ldata/mysql" "$ldata/test"
 do
-  if test ! -d $dir
+  if test ! -d "$dir"
   then
-    if ! `mkdir -p $dir`
+    if ! `mkdir -p "$dir"`
     then
       echo "Fatal error Can't create database directory '$dir'"
       link_to_help
       exit 1
     fi
-    chmod 700 $dir
+    chmod 700 "$dir"
   fi
   if test -n "$user"
   then
-    chown $user $dir
+    chown $user "$dir"
     if test $? -ne 0
     then
       echo "Cannot change ownership of the database directories to the '$user'"
@@ -409,15 +411,19 @@ fi
 
 # Configure mysqld command line
 mysqld_bootstrap="${MYSQLD_BOOTSTRAP-$mysqld}"
-mysqld_install_cmd_line="$mysqld_bootstrap $defaults $mysqld_opt --bootstrap \
-  --basedir=$basedir --datadir=$ldata --log-warnings=0 --loose-skip-innodb \
+mysqld_install_cmd_line()
+{
+  "$mysqld_bootstrap" $defaults "$mysqld_opt" --bootstrap \
+  "--basedir=$basedir" "--datadir=$ldata" --log-warnings=0 --loose-skip-innodb \
   --loose-skip-ndbcluster --loose-skip-pbxt $args --max_allowed_packet=8M \
   --default-storage-engine=myisam \
-  --net_buffer_length=16K"
+  --net_buffer_length=16K
+}
+
 
 # Create the system and help tables by passing them to "mysqld --bootstrap"
 s_echo "Installing MariaDB/MySQL system tables in '$ldata' ..."
-if { echo "use mysql;"; cat $create_system_tables $fill_system_tables; } | eval "$filter_cmd_line" | $mysqld_install_cmd_line > /dev/null
+if { echo "use mysql;"; cat "$create_system_tables" "$fill_system_tables"; } | eval "$filter_cmd_line" | mysqld_install_cmd_line > /dev/null
 then
   s_echo "OK"
 else
@@ -452,7 +458,7 @@ else
 fi
 
 s_echo "Filling help tables..."
-if { echo "use mysql;"; cat $fill_help_tables; } | $mysqld_install_cmd_line > /dev/null
+if { echo "use mysql;"; cat "$fill_help_tables"; } | mysqld_install_cmd_line > /dev/null
 then
   s_echo "OK"
 else
@@ -474,11 +480,11 @@ then
   echo "PLEASE REMEMBER TO SET A PASSWORD FOR THE MariaDB root USER !"
   echo "To do so, start the server, then issue the following commands:"
   echo
-  echo "$bindir/mysqladmin -u root password 'new-password'"
-  echo "$bindir/mysqladmin -u root -h $hostname password 'new-password'"
+  echo "'$bindir/mysqladmin' -u root password 'new-password'"
+  echo "'$bindir/mysqladmin' -u root -h $hostname password 'new-password'"
   echo
   echo "Alternatively you can run:"
-  echo "$bindir/mysql_secure_installation"
+  echo "'$bindir/mysql_secure_installation'"
   echo
   echo "which will also give you the option of removing the test"
   echo "databases and anonymous user created by default.  This is"
@@ -491,14 +497,14 @@ then
   then
     echo
     echo "You can start the MariaDB daemon with:"
-    echo "cd $basedir ; $bindir/mysqld_safe --datadir=$ldata"
+    echo "cd '$basedir' ; $bindir/mysqld_safe --datadir='$ldata'"
     echo
     echo "You can test the MariaDB daemon with mysql-test-run.pl"
-    echo "cd $basedir/mysql-test ; perl mysql-test-run.pl"
+    echo "cd '$basedir/mysql-test' ; perl mysql-test-run.pl"
   fi
 
   echo
-  echo "Please report any problems with the $scriptdir/mysqlbug script!"
+  echo "Please report any problems with the '$scriptdir/mysqlbug' script!"
   echo
   echo "The latest information about MariaDB is available at http://mariadb.org/."
   echo "You can find additional information about the MySQL part at:"

sql/create_options.cc

@@ -137,11 +137,8 @@ static bool set_one_value(ha_create_table_option *opt,
 
       my_option optp=
         { opt->name, 1, 0, (uchar **)val, 0, 0, GET_ULL,
-          REQUIRED_ARG,
-          (longlong) opt->def_value,
-          (longlong) opt->min_value,
-          opt->max_value,
-          0, (long) opt->block_size, 0};
+          REQUIRED_ARG, (longlong)opt->def_value, (longlong)opt->min_value,
+          opt->max_value, 0, (long) opt->block_size, 0};
 
       ulonglong orig_val= strtoull(value->str, NULL, 10);
       my_bool unused;

sql/item.cc

@@ -9609,7 +9609,7 @@ table_map Item_direct_view_ref::used_tables() const
 {
   return get_depended_from() ?
          OUTER_REF_TABLE_BIT :
-         ((view->merged || !view->table) ?
+         ((view->is_merged_derived() || view->merged || !view->table) ?
           (*ref)->used_tables() :
           view->table->map);
 }
@@ -9618,7 +9618,7 @@ table_map Item_direct_view_ref::not_null_tables() const
 {
   return get_depended_from() ?
          0 :
-         ((view->merged || !view->table) ?
+         ((view->is_merged_derived() || view->merged || !view->table) ?
           (*ref)->not_null_tables() :
           view->table->map);
 }

sql/item_subselect.cc

@@ -1063,11 +1063,9 @@ Item_singlerow_subselect::select_transformer(JOIN *join)
     }
     substitution= select_lex->item_list.head();
     /*
-      as far as we moved content to upper level, field which depend of
-      'upper' select is not really dependent => we remove this dependence
+      as far as we moved content to upper level we have to fix dependences & Co
     */
-    substitution->walk(&Item::remove_dependence_processor, 0,
-		       (uchar *) select_lex->outer_select());
+    substitution->fix_after_pullout(select_lex->outer_select(), &substitution);
   }
   DBUG_RETURN(false);
 }

sql/mysqld.cc

@@ -1797,6 +1797,7 @@ void clean_up(bool print_message)
 #endif
   my_tz_free();
   my_dboptions_cache_free();
+  ignore_db_dirs_free();
 #ifndef NO_EMBEDDED_ACCESS_CHECKS
   servers_free(1);
   acl_free(1);
@@ -3440,6 +3441,9 @@ static int init_common_variables()
       mysql_init_variables())
     return 1;
 
+  if (ignore_db_dirs_init())
+    return 1;
+
 #ifdef HAVE_TZNAME
   struct tm tm_tmp;
   localtime_r(&server_start_time,&tm_tmp);
@@ -3868,6 +3872,12 @@ You should consider changing lower_case_table_names to 1 or 2",
 			files_charset_info :
 			&my_charset_bin);
 
+  if (ignore_db_dirs_process_additions())
+  {
+    sql_print_error("An error occurred while storing ignore_db_dirs to a hash.");
+    return 1;
+  }
+
   return 0;
 }
 
@@ -6310,7 +6320,7 @@ struct my_option my_long_options[]=
 #ifdef HAVE_MMAP
   {"log-tc-size", 0, "Size of transaction coordinator log.",
    &opt_tc_log_size, &opt_tc_log_size, 0, GET_ULONG,
-   REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, (longlong) ULONG_MAX, 0,
+   REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, (ulonglong) ULONG_MAX, 0,
    TC_LOG_PAGE_SIZE, 0},
 #endif
   {"master-info-file", 0,
@@ -7736,6 +7746,22 @@ mysqld_get_one_option(int optid,
   case OPT_MAX_LONG_DATA_SIZE:
     max_long_data_size_used= true;
     break;
+
+
+  case OPT_IGNORE_DB_DIRECTORY:
+    if (*argument == 0)
+      ignore_db_dirs_reset();
+    else
+    {
+      if (push_ignored_db_dir(argument))
+      {
+        sql_print_error("Can't start server: "
+                        "cannot process --ignore-db-dir=%.*s", 
+                        FN_REFLEN, argument);
+        return 1;
+      }
+    }
+    break;
   }
   return 0;
 }

sql/mysqld.h

@@ -368,19 +368,23 @@ enum options_mysqld
   OPT_BINLOG_FORMAT,
   OPT_BINLOG_IGNORE_DB,
   OPT_BIN_LOG,
-  OPT_LOG_BASENAME,
   OPT_BOOTSTRAP,
   OPT_CONSOLE,
   OPT_DEBUG_SYNC_TIMEOUT,
   OPT_DELAY_KEY_WRITE_ALL,
   OPT_DEPRECATED_OPTION,
+  OPT_ENGINE_CONDITION_PUSHDOWN,
+  OPT_IGNORE_DB_DIRECTORY,
   OPT_ISAM_LOG,
   OPT_KEY_BUFFER_SIZE,
   OPT_KEY_CACHE_AGE_THRESHOLD,
   OPT_KEY_CACHE_BLOCK_SIZE,
   OPT_KEY_CACHE_DIVISION_LIMIT,
   OPT_KEY_CACHE_PARTITIONS,
+  OPT_LOG_BASENAME,
+  OPT_LOG_ERROR,
   OPT_LOWER_CASE_TABLE_NAMES,
+  OPT_MAX_LONG_DATA_SIZE,
   OPT_ONE_THREAD,
   OPT_POOL_OF_THREADS,
   OPT_REPLICATE_DO_DB,
@@ -406,9 +410,7 @@ enum options_mysqld
   OPT_SSL_KEY,
   OPT_UPDATE_LOG,
   OPT_WANT_CORE,
-  OPT_ENGINE_CONDITION_PUSHDOWN,
-  OPT_LOG_ERROR,
-  OPT_MAX_LONG_DATA_SIZE
+  OPT_which_is_always_the_last
 };
 #endif
 

sql/sql_join_cache.cc

@@ -681,7 +681,23 @@ void JOIN_CACHE::set_constants()
   uint len= length + fields*sizeof(uint)+blobs*sizeof(uchar *) +
             (prev_cache ? prev_cache->get_size_of_rec_offset() : 0) +
             sizeof(ulong);
-  buff_size= max(join->thd->variables.join_buff_size, 2*len);
+  /* 
+    The values of  size_of_rec_ofs, size_of_rec_len, size_of_fld_ofs,
+     base_prefix_length, pack_length,  pack_length_with_blob_ptrs
+     will be recalculated later in this function when we get the estimate
+     for the actual value of the join buffer size.
+  */    
+  size_of_rec_ofs=  size_of_rec_len= size_of_fld_ofs= 4;
+  base_prefix_length= (with_length ? size_of_rec_len : 0) +
+                      (prev_cache ? prev_cache->get_size_of_rec_offset() : 0); 
+  pack_length= (with_length ? size_of_rec_len : 0) +
+               (prev_cache ? prev_cache->get_size_of_rec_offset() : 0) + 
+               length + fields*sizeof(uint);
+  pack_length_with_blob_ptrs= pack_length + blobs*sizeof(uchar *);
+  min_buff_size= 0;
+  min_records= 1;
+  buff_size= max(join->thd->variables.join_buff_size,
+                 get_min_join_buffer_size());
   size_of_rec_ofs= offset_size(buff_size);
   size_of_rec_len= blobs ? size_of_rec_ofs : offset_size(len); 
   size_of_fld_ofs= size_of_rec_len;
@@ -754,19 +770,24 @@ ulong JOIN_CACHE::get_min_join_buffer_size()
   if (!min_buff_size)
   {
     size_t len= 0;
+    size_t len_last= 0;
     for (JOIN_TAB *tab= start_tab; tab != join_tab; 
          tab= next_linear_tab(join, tab, WITHOUT_BUSH_ROOTS))
     {
       len+= tab->get_max_used_fieldlength();
+      len_last=+ tab->get_used_fieldlength();
     }
-    len+= get_record_max_affix_length() + get_max_key_addon_space_per_record();  
-    size_t min_sz= len*min_records;
+    size_t len_addon= get_record_max_affix_length() +
+                      get_max_key_addon_space_per_record();
+    len+= len_addon;
+    len_last+= len_addon;
+    size_t min_sz= len*(min_records-1) + len_last;
+    min_sz+= pack_length_with_blob_ptrs;
     size_t add_sz= 0;
     for (uint i=0; i < min_records; i++)
       add_sz+= join_tab_scan->aux_buffer_incr(i+1);
     avg_aux_buffer_incr= add_sz/min_records;
     min_sz+= add_sz;
-    min_sz+= pack_length_with_blob_ptrs;
     set_if_bigger(min_sz, 1);
     min_buff_size= min_sz;
   }

sql/sql_priv.h

@@ -364,6 +364,8 @@ inline int hexchar_to_int(char c)
 #define IS_TABLESPACES_NODEGROUP_ID       7
 #define IS_TABLESPACES_TABLESPACE_COMMENT 8
 
+bool db_name_is_in_ignore_db_dirs_list(const char *dbase);
+
 #endif /* MYSQL_SERVER */
 
 #endif /* MYSQL_CLIENT */

sql/sql_show.cc

@@ -414,6 +414,281 @@ bool mysqld_show_privileges(THD *thd)
 }
 
 
+/** Hash of LEX_STRINGs used to search for ignored db directories. */
+static HASH ignore_db_dirs_hash;
+
+/** 
+  An array of LEX_STRING pointers to collect the options at 
+  option parsing time.
+*/
+static DYNAMIC_ARRAY ignore_db_dirs_array;
+
+/**
+  A value for the read only system variable to show a list of
+  ignored directories.
+*/
+char *opt_ignore_db_dirs= NULL;
+
+/**
+  This flag is ON if:
+        - the list of ignored directories is not empty
+
+        - and some of the ignored directory names
+        need no tablename-to-filename conversion.
+        Otherwise, if the name of the directory contains
+        unconditional characters like '+' or '.', they
+        never can match the database directory name. So the
+        db_name_is_in_ignore_db_dirs_list() can just return at once.
+*/
+static bool skip_ignored_dir_check= TRUE;
+
+/**
+  Sets up the data structures for collection of directories at option
+  processing time.
+  We need to collect the directories in an array first, because
+  we need the character sets initialized before setting up the hash.
+
+  @return state
+  @retval TRUE  failed
+  @retval FALSE success
+*/
+
+bool
+ignore_db_dirs_init()
+{
+  return my_init_dynamic_array(&ignore_db_dirs_array, sizeof(LEX_STRING *),
+                               0, 0);
+}
+
+
+/**
+  Retrieves the key (the string itself) from the LEX_STRING hash members.
+
+  Needed by hash_init().
+
+  @param     data         the data element from the hash
+  @param out len_ret      Placeholder to return the length of the key
+  @param                  unused
+  @return                 a pointer to the key
+*/
+
+static uchar *
+db_dirs_hash_get_key(const uchar *data, size_t *len_ret,
+                     my_bool __attribute__((unused)))
+{
+  LEX_STRING *e= (LEX_STRING *) data;
+
+  *len_ret= e->length;
+  return (uchar *) e->str;
+}
+
+
+/**
+  Wrap a directory name into a LEX_STRING and push it to the array.
+
+  Called at option processing time for each --ignore-db-dir option.
+
+  @param    path  the name of the directory to push
+  @return state
+  @retval TRUE  failed
+  @retval FALSE success
+*/
+
+bool
+push_ignored_db_dir(char *path)
+{
+  LEX_STRING *new_elt;
+  char *new_elt_buffer;
+  size_t path_len= strlen(path);
+
+  if (!path_len || path_len >= FN_REFLEN)
+    return true;
+
+  // No need to normalize, it's only a directory name, not a path.
+  if (!my_multi_malloc(0,
+                       &new_elt, sizeof(LEX_STRING),
+                       &new_elt_buffer, path_len + 1,
+                       NullS))
+    return true;
+  new_elt->str= new_elt_buffer;
+  memcpy(new_elt_buffer, path, path_len);
+  new_elt_buffer[path_len]= 0;
+  new_elt->length= path_len;
+  return insert_dynamic(&ignore_db_dirs_array, (uchar*) &new_elt);
+}
+
+
+/**
+  Clean up the directory ignore options accumulated so far.
+
+  Called at option processing time for each --ignore-db-dir option
+  with an empty argument.
+*/
+
+void
+ignore_db_dirs_reset()
+{
+  LEX_STRING **elt;
+  while (NULL!= (elt= (LEX_STRING **) pop_dynamic(&ignore_db_dirs_array)))
+    if (elt && *elt)
+      my_free(*elt);
+}
+
+
+/**
+  Free the directory ignore option variables.
+
+  Called at server shutdown.
+*/
+
+void
+ignore_db_dirs_free()
+{
+  if (opt_ignore_db_dirs)
+  {
+    my_free(opt_ignore_db_dirs);
+    opt_ignore_db_dirs= NULL;
+  }
+  ignore_db_dirs_reset();
+  delete_dynamic(&ignore_db_dirs_array);
+  my_hash_free(&ignore_db_dirs_hash);
+}
+
+
+/**
+  Initialize the ignore db directories hash and status variable from
+  the options collected in the array.
+
+  Called when option processing is over and the server's in-memory 
+  structures are fully initialized.
+
+  @return state
+  @retval TRUE  failed
+  @retval FALSE success
+*/
+
+static void dispose_db_dir(void *ptr)
+{
+  my_free(ptr);
+}
+
+
+bool
+ignore_db_dirs_process_additions()
+{
+  ulong i;
+  size_t len;
+  char *ptr;
+  LEX_STRING *dir;
+
+
+  skip_ignored_dir_check= TRUE;
+
+  if (my_hash_init(&ignore_db_dirs_hash, 
+                   lower_case_table_names ?
+                     character_set_filesystem : &my_charset_bin,
+                   0, 0, 0, db_dirs_hash_get_key,
+                   dispose_db_dir,
+                   HASH_UNIQUE))
+    return true;
+
+  /* len starts from 1 because of the terminating zero. */
+  len= 1;
+  for (i= 0; i < ignore_db_dirs_array.elements; i++)
+  {
+    get_dynamic(&ignore_db_dirs_array, (uchar *) &dir, i);
+    len+= dir->length + 1;                      // +1 for the comma
+    if (skip_ignored_dir_check)
+    {
+      char buff[FN_REFLEN];
+      (void) tablename_to_filename(dir->str, buff, sizeof(buff));
+      skip_ignored_dir_check= strcmp(dir->str, buff) != 0;
+    }
+  }
+
+  /* No delimiter for the last directory. */
+  if (len > 1)
+    len--;
+
+  /* +1 the terminating zero */
+  ptr= opt_ignore_db_dirs= (char *) my_malloc(len + 1, MYF(0));
+  if (!ptr)
+    return true;
+
+  /* Make sure we have an empty string to start with. */
+  *ptr= 0;
+
+  for (i= 0; i < ignore_db_dirs_array.elements; i++)
+  {
+    get_dynamic(&ignore_db_dirs_array, (uchar *) &dir, i);
+    if (my_hash_insert(&ignore_db_dirs_hash, (uchar *) dir))
+      return true;
+    ptr= strnmov(ptr, dir->str, dir->length);
+    if (i + 1 < ignore_db_dirs_array.elements)
+      ptr= strmov(ptr, ",");
+
+    /*
+      Set the transferred array element to NULL to avoid double free
+      in case of error.
+    */
+    dir= NULL;
+    set_dynamic(&ignore_db_dirs_array, (uchar *) &dir, i);
+  }
+
+  /* make sure the string is terminated */
+  DBUG_ASSERT(ptr - opt_ignore_db_dirs <= (ptrdiff_t) len);
+  *ptr= 0;
+
+  /* 
+    It's OK to empty the array here as the allocated elements are
+    referenced through the hash now.
+  */
+  reset_dynamic(&ignore_db_dirs_array);
+
+  return false;
+}
+
+
+/**
+  Check if a directory name is in the hash of ignored directories.
+
+  @return search result
+  @retval TRUE  found
+  @retval FALSE not found
+*/
+
+static inline bool
+is_in_ignore_db_dirs_list(const char *directory)
+{
+  return ignore_db_dirs_hash.records &&
+    NULL != my_hash_search(&ignore_db_dirs_hash, (const uchar *) directory, 
+                           strlen(directory));
+}
+
+
+/**
+  Check if a database name is in the hash of ignored directories.
+
+  @return search result
+  @retval TRUE  found
+  @retval FALSE not found
+*/
+
+bool
+db_name_is_in_ignore_db_dirs_list(const char *directory)
+{
+  char buff[FN_REFLEN];
+  uint buff_len;
+
+  if (skip_ignored_dir_check)
+    return 0;
+
+  buff_len= tablename_to_filename(directory, buff, sizeof(buff));
+
+  return my_hash_search(&ignore_db_dirs_hash, (uchar *) buff, buff_len)!=NULL;
+}
+
+
 /*
   find_files() - find files in a given directory.
 
@@ -499,6 +774,9 @@ find_files(THD *thd, List<LEX_STRING> *files, const char *db,
       if (!MY_S_ISDIR(file->mystat->st_mode))
         continue;
 
+      if (is_in_ignore_db_dirs_list(file->name))
+        continue;
+
       file_name_len= filename_to_tablename(file->name, uname, sizeof(uname));
       if (wild)
       {

sql/sql_show.h

@@ -132,4 +132,12 @@ enum enum_schema_tables get_schema_table_idx(ST_SCHEMA_TABLE *schema_table);
 /* These functions were under INNODB_COMPATIBILITY_HOOKS */
 int get_quote_char_for_identifier(THD *thd, const char *name, uint length);
 
+/* Handle the ignored database directories list for SHOW/I_S. */
+bool ignore_db_dirs_init();
+void ignore_db_dirs_free();
+void ignore_db_dirs_reset();
+bool ignore_db_dirs_process_additions();
+bool push_ignored_db_dir(char *path);
+extern char *opt_ignore_db_dirs;
+
 #endif /* SQL_SHOW_H */

sql/sys_vars.cc

@@ -48,6 +48,7 @@
 #include <myisam.h>
 #include "log_slow.h"
 #include "debug_sync.h"                         // DEBUG_SYNC
+#include "sql_show.h"
 
 #include "log_event.h"
 #ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
@@ -3615,6 +3616,15 @@ static Sys_var_tz Sys_time_zone(
        SESSION_VAR(time_zone), NO_CMD_LINE,
        DEFAULT(&default_tz), NO_MUTEX_GUARD, IN_BINLOG);
 
+static Sys_var_charptr Sys_ignore_db_dirs(
+       "ignore_db_dirs",
+       "Specifies a directory to add to the ignore list when collecting "
+       "database names from the datadir. Put a blank argument to reset "
+       "the list accumulated so far.",
+       READ_ONLY GLOBAL_VAR(opt_ignore_db_dirs), 
+       CMD_LINE(REQUIRED_ARG, OPT_IGNORE_DB_DIRECTORY),
+       IN_FS_CHARSET, DEFAULT(0));
+
 static Sys_var_ulong Sys_sp_cache_size(
        "stored_program_cache",
        "The soft upper limit for number of cached stored routines for "

sql/table.cc

@@ -3444,6 +3444,9 @@ bool check_db_name(LEX_STRING *org_name)
   if (lower_case_table_names && name != any_db)
     my_casedn_str(files_charset_info, name);
 
+  if (db_name_is_in_ignore_db_dirs_list(name))
+    return 1;
+
   return check_table_name(name, name_length, check_for_path_chars);
 }
 
@@ -4967,7 +4970,16 @@ TABLE *TABLE_LIST::get_real_join_table()
     tbl= (tbl->view != NULL ?
           tbl->view->select_lex.get_table_list() :
           tbl->derived->first_select()->get_table_list());
+
+    /* find left table in outer join on this level */
+    while(tbl->outer_join & JOIN_TYPE_RIGHT)
+    {
+      DBUG_ASSERT(tbl->next_local);
+      tbl= tbl->next_local;
+    }
+
   }
+
   return tbl->table;
 }
 

sql/table.h

@@ -1860,6 +1860,7 @@ struct TABLE_LIST
   /* TRUE <=> derived table should be filled right after optimization. */
   bool          fill_me;
   /* TRUE <=> view/DT is merged. */
+  /* TODO: replace with derived_type */
   bool          merged;
   bool          merged_for_insert;
   /* TRUE <=> don't prepare this derived table/view as it should be merged.*/

storage/maria/ma_ft_nlq_search.c

@@ -82,6 +82,7 @@ static int walk_and_match(FT_WORD *word, uint32 count, ALL_IN_ONE *aio)
 #error
 #endif
   DBUG_ENTER("walk_and_match");
+  LINT_INIT(subkeys.i);
 
   LINT_INIT_STRUCT(subkeys);