Merge bk-internal:/home/bk/mysql-4.0/

into serg.mylan:/usr/home/serg/Abk/mysql-4.0

BitKeeper/etc/logging_ok

@@ -29,6 +29,7 @@ dellis@goetia.(none)
 dlenev@brandersnatch.localdomain
 dlenev@build.mysql.com
 dlenev@mysql.com
+gbichot@quadxeon.mysql.com
 gerberb@ou800.zenez.com
 gluh@gluh.(none)
 gluh@gluh.mysql.r18.ru
@@ -109,9 +110,11 @@ nick@mysql.com
 nick@nick.leippe.com
 patg@krsna.patg.net
 paul@central.snake.net
+paul@frost.snake.net
 paul@ice.local
 paul@ice.snake.net
 paul@kite-hub.kitebird.com
+paul@snake-hub.snake.net
 paul@teton.kitebird.com
 pem@mysql.com
 peter@linux.local

Build-tools/Do-compile

@@ -617,16 +617,20 @@ sub abort
 
   if ($opt_user)
   {
-    $mail_header_file="$opt_tmp/do-command.$$";
-    open(TMP,">$mail_header_file");
+    # Take the last 40 lines of the build log
+    open(LOG, "$log") or die $!;
+    my @log= <LOG>;
+    close LOG;
+    splice @log => 0, -40;
+    my $mail_file="$opt_tmp/do-command.$$";
+    open(TMP,">$mail_file") or die $!;
     print TMP "From: mysqldev\@$full_host_name\n";
     print TMP "To: $email\n";
     print TMP "Subject: $host($uname): $ver$opt_version_suffix compilation failed\n\n";
+    print TMP @log;
     close TMP;
-    system("tail -n 40 $log > $log.mail");
-    system("cat $mail_header_file $log.mail | $sendmail -t -f $email");
-    unlink($mail_header_file);
-    unlink("$log.mail");
+    system("$sendmail -t -f $email < $mail_file");
+    unlink($mail_file);
   }
   exit 1;
 }

Docs/changelog-4.0.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
+"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
+<!--
+This is a dummy changelog file. Don't use it yet.
+It merges upward without conflict.
+-->
+<appendix id="news-4-0-x">
+
+ <title>
+  Changes in release 4.0.x
+ </title>
+
+ <para>
+  This is a dummy changelog file. Don't use it yet.
+ </para>
+
+</appendix>

configure.in

@@ -4,7 +4,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT(sql/mysqld.cc)
 AC_CANONICAL_SYSTEM
 # The Docs Makefile.am parses this line!
-AM_INIT_AUTOMAKE(mysql, 4.0.24)
+AM_INIT_AUTOMAKE(mysql, 4.0.25)
 AM_CONFIG_HEADER(config.h)
 
 PROTOCOL_VERSION=10

innobase/dict/dict0load.c

@@ -639,7 +639,7 @@ dict_load_table(
 
 	/* Check if the table name in record is the searched one */
 	if (len != ut_strlen(name) || ut_memcmp(name, field, len) != 0) {
-
+	err_exit:
 		btr_pcur_close(&pcur);
 		mtr_commit(&mtr);
 		mem_heap_free(heap);
@@ -647,22 +647,6 @@ dict_load_table(
 		return(NULL);
 	}
 
-#if MYSQL_VERSION_ID < 50300
-	/* Starting from MySQL 5.0.3, the high-order bit of MIX_LEN is the
-	"compact format" flag. */
-	field = rec_get_nth_field(rec, 7, &len);
-	if (mach_read_from_1(field) & 0x80) {
-		btr_pcur_close(&pcur);
-		mtr_commit(&mtr);
-		mem_heap_free(heap);
-		ut_print_timestamp(stderr);
-		fprintf(stderr,
-			"  InnoDB: table %s is in the new compact format\n"
-			"InnoDB: of MySQL 5.0.3 or later\n", name);
-		return(NULL);
-	}
-#endif /* MYSQL_VERSION_ID < 50300 */
-
 	ut_a(0 == ut_strcmp((char *) "SPACE",
 		dict_field_get_col(
 		dict_index_get_nth_field(
@@ -678,6 +662,13 @@ dict_load_table(
 
 	field = rec_get_nth_field(rec, 4, &len);
 	n_cols = mach_read_from_4(field);
+	if (n_cols & 0x80000000UL) {
+		ut_print_timestamp(stderr);
+		fprintf(stderr,
+			"  InnoDB: table %s is in the new compact format\n"
+			"InnoDB: of MySQL 5.0.3 or later\n", name);
+		goto err_exit;
+	}
 
 	table = dict_mem_table_create(name, space, n_cols);
 

innobase/include/srv0srv.h

@@ -101,6 +101,7 @@ extern ibool	srv_use_doublewrite_buf;
 extern ibool    srv_set_thread_priorities;
 extern int      srv_query_thread_priority;
 
+extern ulong	srv_max_buf_pool_modified_pct;
 extern ulong	srv_max_purge_lag;
 /*-------------------------------------------*/
 

innobase/include/trx0trx.h

@@ -346,6 +346,12 @@ struct trx_struct{
 					in MySQL's binlog write, we will
 					flush the log to disk later in
 					a separate call */
+	ibool		must_flush_log_later;/* this flag is set to TRUE in
+					trx_commit_off_kernel() if
+					flush_log_later was TRUE, and there
+					were modifications by the transaction;
+					in that case we must flush the log
+					in trx_commit_complete_for_mysql() */
 	dulint		commit_lsn;	/* lsn at the time of the commit */
 	ibool		dict_operation;	/* TRUE if the trx is used to create
 					a table, create an index, or drop a

innobase/srv/srv0srv.c

@@ -165,7 +165,7 @@ in the buffer pool to all database pages in the buffer pool smaller than
 the following number. But it is not guaranteed that the value stays below
 that during a time of heavy update/insert activity. */
 
-ulint	srv_max_buf_pool_modified_pct	= 90;
+ulong	srv_max_buf_pool_modified_pct	= 90;
 
 /* If the following is != 0 we do not allow inserts etc. This protects
 the user from forgetting the innodb_force_recovery keyword to my.cnf */

innobase/trx/trx0trx.c

@@ -96,6 +96,7 @@ trx_create(
 	trx->check_unique_secondary = TRUE;
 
 	trx->flush_log_later = FALSE;
+	trx->must_flush_log_later = FALSE;
 
 	trx->dict_operation = FALSE;
 
@@ -635,6 +636,8 @@ trx_commit_off_kernel(
 
 	rseg = trx->rseg;
 
+	trx->must_flush_log_later = FALSE;
+	
 	if (trx->insert_undo != NULL || trx->update_undo != NULL) {
 
 		mutex_exit(&kernel_mutex);
@@ -798,6 +801,7 @@ trx_commit_off_kernel(
 
                 if (trx->flush_log_later) {
                         /* Do nothing yet */
+			trx->must_flush_log_later = TRUE;
                 } else if (srv_flush_log_at_trx_commit == 0) {
                         /* Do nothing */
                 } else if (srv_flush_log_at_trx_commit == 1) {
@@ -1516,7 +1520,9 @@ trx_commit_complete_for_mysql(
 	
 	trx->op_info = (char*)"flushing log";
 
-        if (srv_flush_log_at_trx_commit == 0) {
+	if (!trx->must_flush_log_later) {
+		/* Do nothing */
+	} if (srv_flush_log_at_trx_commit == 0) {
                 /* Do nothing */
         } else if (srv_flush_log_at_trx_commit == 1) {
                 if (srv_unix_file_flush_method == SRV_UNIX_NOSYNC) {
@@ -1538,6 +1544,8 @@ trx_commit_complete_for_mysql(
                 ut_error;
         }
 
+	trx->must_flush_log_later = FALSE;
+
 	trx->op_info = (char*)"";
 
         return(0);

man/isamchk.1.in

@@ -130,7 +130,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/isamlog.1.in

@@ -87,7 +87,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 

man/mysql.1.in

@@ -107,7 +107,7 @@ version number and exit.
 Wait and retry if the database server connection is down.
 .SH FILES
 .TP 2.2i
-.I @sysconfdir@/my.cnf
+.I /etc/my.cnf
 MySQL configuration file
 .TP
 .I @bindir@/mysql
@@ -145,7 +145,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/mysql_fix_privilege_tables.1.in

@@ -30,7 +30,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/mysql_zap.1.in

@@ -44,7 +44,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR 

man/mysqlaccess.1.in

@@ -110,7 +110,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/mysqladmin.1.in

@@ -194,7 +194,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/mysqld.1.in

@@ -219,7 +219,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/mysqld_multi.1.in

@@ -74,7 +74,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 

man/mysqld_safe.1.in

@@ -76,7 +76,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/mysqldump.1.in

@@ -263,7 +263,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/mysqlman.1.in

@@ -9,7 +9,7 @@ In most cases, you can run the executable from the command line with a "--help"
 argument to display a brief summary of the executable's arguments and function.
 For more information about MySQL, please refer to the MySQL reference manual,
 which may already be installed locally and which is also available online at
-http://dev.mysql.com/doc/
+http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .\" end of man page

man/mysqlshow.1.in

@@ -83,7 +83,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/perror.1.in

@@ -43,7 +43,7 @@ replace(1)
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR

man/replace.1.in

@@ -57,7 +57,7 @@ perror(1),
 .P
 For more information please refer to the MySQL reference
 manual, which may already be installed locally and which
-is also available online at http://www.mysql.com/doc/en/
+is also available online at http://dev.mysql.com/doc/mysql/en
 .SH BUGS
 Please refer to http://bugs.mysql.com/ to report bugs.
 .SH AUTHOR 

mysql-test/r/func_str.result

@@ -304,3 +304,18 @@ QUOTE('A')
 'A'
 'A'
 DROP TABLE t1;
+CREATE TABLE t1 (id int PRIMARY KEY, str char(255) NOT NULL);
+CREATE TABLE t2 (id int NOT NULL UNIQUE);
+INSERT INTO t2 VALUES (1),(2);
+INSERT INTO t1 VALUES (1, aes_encrypt('foo', 'bar'));
+INSERT INTO t1 VALUES (2, 'not valid');
+SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id;
+id	aes_decrypt(str, 'bar')
+1	foo
+2	NULL
+SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id
+ORDER BY t1.id;
+id	aes_decrypt(str, 'bar')
+1	foo
+2	NULL
+DROP TABLE t1, t2;

mysql-test/r/join_outer.result

@@ -684,3 +684,23 @@ t1	ALL	NULL	NULL	NULL	NULL	3
 t2	ALL	NULL	NULL	NULL	NULL	2	
 t3	ALL	NULL	NULL	NULL	NULL	2	
 drop table t1, t2, t3;
+create table t1 (
+a int(11),
+b char(10),
+key (a)
+);
+insert into t1 (a) values (1),(2),(3),(4);
+create table t2 (a int);
+select * from t1 left join t2 on t1.a=t2.a where not (t2.a <=> t1.a);
+a	b	a
+1	NULL	NULL
+2	NULL	NULL
+3	NULL	NULL
+4	NULL	NULL
+select * from t1 left join t2 on t1.a=t2.a having not (t2.a <=> t1.a);
+a	b	a
+1	NULL	NULL
+2	NULL	NULL
+3	NULL	NULL
+4	NULL	NULL
+drop table t1,t2;

mysql-test/r/update.result

@@ -209,3 +209,10 @@ insert into t1 values (1, "t1c2-1", 10), (2, "t1c2-2", 20);
 update t1 left join t2 on t1.c1 = t2.c1 set t2.c2 = "t2c2-1";
 update t1 left join t2 on t1.c1 = t2.c1 set t2.c2 = "t2c2-1" where t1.c3 = 10;
 drop table t1, t2;
+create table t1 (a int, b char(255), key(a, b(20)));
+insert into t1 values (0, '1');
+update t1 set b = b + 1 where a = 0;
+select * from t1;
+a	b
+0	2
+drop table t1;

mysql-test/t/func_str.test

@@ -198,3 +198,20 @@ select quote(trim(concat('    ', 'a')));
 CREATE TABLE t1 SELECT 1 UNION SELECT 2 UNION SELECT 3;
 SELECT QUOTE('A') FROM t1;
 DROP TABLE t1;
+
+#
+# Test case for bug #8669: null aes_decrypt result in order by query
+#
+
+CREATE TABLE t1 (id int PRIMARY KEY, str char(255) NOT NULL);
+CREATE TABLE t2 (id int NOT NULL UNIQUE);
+INSERT INTO t2 VALUES (1),(2);
+INSERT INTO t1 VALUES (1, aes_encrypt('foo', 'bar'));
+INSERT INTO t1 VALUES (2, 'not valid');
+
+SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id;
+SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id
+ ORDER BY t1.id;
+
+DROP TABLE t1, t2;
+

mysql-test/t/join_outer.test

@@ -450,3 +450,16 @@ select * from t1 left join t2  on  b1 = a1 left join t3  on  c1 = a1  and  b1 is
 explain select * from t1 left join t2  on  b1 = a1 left join t3  on  c1 = a1  and  b1 is null;
 
 drop table t1, t2, t3;
+
+# Test for BUG#8711 '<=>' was considered to be a NULL-rejecting predicate.
+create table t1 (
+  a int(11),
+  b char(10),
+  key (a)
+);
+insert into t1 (a) values (1),(2),(3),(4);
+create table t2 (a int);
+
+select * from t1 left join t2 on t1.a=t2.a where not (t2.a <=> t1.a);
+select * from t1 left join t2 on t1.a=t2.a having not (t2.a <=> t1.a);
+drop table t1,t2;

mysql-test/t/update.test

@@ -164,3 +164,13 @@ insert into t1 values (1, "t1c2-1", 10), (2, "t1c2-2", 20);
 update t1 left join t2 on t1.c1 = t2.c1 set t2.c2 = "t2c2-1";
 update t1 left join t2 on t1.c1 = t2.c1 set t2.c2 = "t2c2-1" where t1.c3 = 10;
 drop table t1, t2;
+
+#
+# Bug #8942: a problem with update and partial key part
+#
+
+create table t1 (a int, b char(255), key(a, b(20)));
+insert into t1 values (0, '1');
+update t1 set b = b + 1 where a = 0;
+select * from t1;
+drop table t1;

netware/BUILD/mwenv

@@ -7,13 +7,13 @@
 export MYDEV="F:/mydev"
 
 export MWCNWx86Includes="$MYDEV/libc/include;$MYDEV/fs64/headers;$MYDEV/zlib-1.1.4;$MYDEV"
-export MWNWx86Libraries="$MYDEV/libc/imports;$MYDEV/mw/lib;$MYDEV/fs64/imports;$MYDEV/zlib-1.1.4;$MYDEV/mysql-4.0.21/netware/BUILD"
+export MWNWx86Libraries="$MYDEV/libc/imports;$MYDEV/mw/lib;$MYDEV/fs64/imports;$MYDEV/zlib-1.1.4;$MYDEV/mysql-VERSION/netware/BUILD"
 export MWNWx86LibraryFiles="libcpre.o;libc.imp;netware.imp;mwcrtl.lib;mwcpp.lib;libz.a;neb.imp;zPublics.imp;knetware.imp"
 
 export WINEPATH="$MYDEV/mw/bin"
 
 # the default added path is "$HOME/mydev/mysql-x.x-x/netware/BUILD"
-export PATH="$PATH:/home/kp/mydev/mysql-4.0.21/netware/BUILD"
+export PATH="$PATH:BUILD_DIR/mysql-VERSION/netware/BUILD"
 
 export AR='mwldnlm'
 export AR_FLAGS='-type library -o'

sql/item_cmpfunc.h

@@ -78,6 +78,7 @@ class Item_func_equal :public Item_bool_func2
   Item_func_equal(Item *a,Item *b) :Item_bool_func2(a,b) { };
   longlong val_int();
   void fix_length_and_dec();
+  table_map not_null_tables() const { return 0; }
   enum Functype functype() const { return EQUAL_FUNC; }
   enum Functype rev_functype() const { return EQUAL_FUNC; }
   cond_result eq_cmp_result() const { return COND_TRUE; }

sql/item_strfunc.cc

@@ -208,6 +208,7 @@ String *Item_func_aes_decrypt::val_str(String *str)
 void Item_func_aes_decrypt::fix_length_and_dec()
 {
    max_length=args[0]->max_length;
+   maybe_null= 1;
 }
 
 
@@ -1465,7 +1466,8 @@ Item_func_format::Item_func_format(Item *org,int dec) :Item_str_func(org)
 String *Item_func_format::val_str(String *str)
 {
   double nr	=args[0]->val();
-  uint32 diff,length,str_length;
+  uint32 length,str_length;
+  int diff;
   uint dec;
   if ((null_value=args[0]->null_value))
     return 0; /* purecov: inspected */
@@ -1483,17 +1485,17 @@ String *Item_func_format::val_str(String *str)
   if (str_length >= dec+4)
   {
     char *tmp,*pos;
-    length= str->length()+(diff=(str_length- dec-1)/3);
+    length= str->length()+(diff= (int)(str_length- dec-1)/3);
     str= copy_if_not_alloced(&tmp_str,str,length);
     str->length(length);
     tmp= (char*) str->ptr()+length - dec-1;
     for (pos= (char*) str->ptr()+length-1; pos != tmp; pos--)
-      pos[0]= pos[-(int) diff];
+      pos[0]= pos[-diff];
     while (diff)
     {
-      pos[0]=pos[-(int) diff]; pos--;
-      pos[0]=pos[-(int) diff]; pos--;
-      pos[0]=pos[-(int) diff]; pos--;
+      pos[0]=pos[-diff]; pos--;
+      pos[0]=pos[-diff]; pos--;
+      pos[0]=pos[-diff]; pos--;
       pos[0]=',';
       pos--;
       diff--;

sql/key.cc

@@ -265,7 +265,7 @@ bool check_if_key_used(TABLE *table, uint idx, List<Item> &fields)
     f.rewind();
     while ((field=(Item_field*) f++))
     {
-      if (key_part->field == field->field)
+      if (key_part->field->eq(field->field))
 	return 1;
     }
   }

sql/log_event.cc

@@ -2360,7 +2360,9 @@ int Create_file_log_event::exec_event(struct st_relay_log_info* rli)
   strmov(p, ".info");			// strmov takes less code than memcpy
   strnmov(proc_info, "Making temp file ", 17); // no end 0
   thd->proc_info= proc_info;
-  if ((fd = my_open(fname_buf, O_WRONLY|O_CREAT|O_BINARY|O_TRUNC,
+  my_delete(fname_buf, MYF(0)); // old copy may exist already
+  if ((fd= my_create(fname_buf, CREATE_MODE,
+		     O_WRONLY | O_BINARY | O_EXCL | O_NOFOLLOW,
 		     MYF(MY_WME))) < 0 ||
       init_io_cache(&file, fd, IO_SIZE, WRITE_CACHE, (my_off_t)0, 0,
 		    MYF(MY_WME|MY_NABP)))
@@ -2383,7 +2385,9 @@ int Create_file_log_event::exec_event(struct st_relay_log_info* rli)
   my_close(fd, MYF(0));
   
   // fname_buf now already has .data, not .info, because we did our trick
-  if ((fd = my_open(fname_buf, O_WRONLY|O_CREAT|O_BINARY|O_TRUNC,
+  my_delete(fname_buf, MYF(0)); // old copy may exist already
+  if ((fd= my_create(fname_buf, CREATE_MODE,
+		     O_WRONLY | O_BINARY | O_EXCL | O_NOFOLLOW,
 		     MYF(MY_WME))) < 0)
   {
     slave_print_error(rli,my_errno, "Error in Create_file event: could not open file '%s'", fname_buf);
@@ -2426,7 +2430,7 @@ int Append_block_log_event::exec_event(struct st_relay_log_info* rli)
   memcpy(p, ".data", 6);
   strnmov(proc_info, "Making temp file ", 17); // no end 0
   thd->proc_info= proc_info;
-  if ((fd = my_open(fname, O_WRONLY|O_APPEND|O_BINARY, MYF(MY_WME))) < 0)
+  if ((fd = my_open(fname, O_WRONLY|O_APPEND|O_BINARY|O_NOFOLLOW, MYF(MY_WME))) < 0)
   {
     slave_print_error(rli,my_errno, "Error in Append_block event: could not open file '%s'", fname);
     goto err;
@@ -2455,7 +2459,7 @@ int Execute_load_log_event::exec_event(struct st_relay_log_info* rli)
   Load_log_event* lev = 0;
 
   memcpy(p, ".info", 6);
-  if ((fd = my_open(fname, O_RDONLY|O_BINARY, MYF(MY_WME))) < 0 ||
+  if ((fd = my_open(fname, O_RDONLY|O_BINARY|O_NOFOLLOW, MYF(MY_WME))) < 0 ||
       init_io_cache(&file, fd, IO_SIZE, READ_CACHE, (my_off_t)0, 0,
 		    MYF(MY_WME|MY_NABP)))
   {