Fixed problems with decimals withing IF()

Force add of FN_LIBCHAR to symlinks on windows

Docs/manual.texi

@@ -314,7 +314,6 @@ Windows Notes
 * Windows and SSH::             Connecting to a remote @strong{MySQL} from Windows with SSH
 * Windows symbolic links::      Splitting data across different disks under Win32
 * Windows compiling::           Compiling MySQL clients on Windows.
-* Windows and BDB tables.::     Windows and BDB Tables
 * Windows vs Unix::             @strong{MySQL}-Windows compared to Unix @strong{MySQL}
 
 Post-installation Setup and Testing
@@ -8874,7 +8873,6 @@ This is also described in the @file{README} file that comes with the
 * Windows and SSH::             Connecting to a remote @strong{MySQL} from Windows with SSH
 * Windows symbolic links::      Splitting data across different disks under Win32
 * Windows compiling::           Compiling MySQL clients on Windows.
-* Windows and BDB tables.::     Windows and BDB Tables
 * Windows vs Unix::             @strong{MySQL}-Windows compared to Unix @strong{MySQL}
 @end menu
 
@@ -8923,9 +8921,8 @@ symbolic links, BDB and InnoDB tables.
 @item @code{mysqld-opt} @tab
 Optimized binary with no support for transactional tables.
 @item @code{mysqld-nt} @tab
-Optimized for a Pentium Pro processor. Has support for
-named pipes. You can run this version on Win98, but in
-this case no named pipes are created and you must
+Optimized binary for NT with support for named pipes. You can run this
+version on Win98, but in this case no named pipes are created and you must
 have TCP/IP installed.
 @item @code{mysqld-max} @tab
 Optimized binary with support for symbolic links, BDB and InnoDB tables.
@@ -9226,7 +9223,7 @@ text @code{D:\data\foo}.  After that, all tables created in the database
 
 @cindex compiling, on Windows
 @cindex Windows, compiling on
-@node Windows compiling, Windows and BDB tables., Windows symbolic links, Windows
+@node Windows compiling, Windows vs Unix, Windows symbolic links, Windows
 @subsection Compiling MySQL Clients on Windows
 
 In your source files, you should include @file{windows.h} before you include
@@ -9246,19 +9243,9 @@ with the static @file{mysqlclient.lib} library.
 Note that as the mysqlclient libraries are compiled as threaded libraries,
 you should also compile your code to be multi-threaded!
 
-@cindex BDB tables
-@cindex tables, BDB
-@node Windows and BDB tables., Windows vs Unix, Windows compiling, Windows
-@subsection Windows and BDB Tables
-
-We will shortly do a full test on the new BDB interface on Windows.
-When this is done we will start to release binary distributions (for
-Windows and Unix) of @strong{MySQL} that will include support for BDB
-tables.
-
 @cindex Windows, versus Unix
 @cindex operating systems, Windows versus Unix
-@node Windows vs Unix,  , Windows and BDB tables., Windows
+@node Windows vs Unix,  , Windows compiling, Windows
 @subsection MySQL-Windows Compared to Unix MySQL
 
 @strong{MySQL}-Windows has by now proven itself to be very stable. This version
@@ -42562,7 +42549,7 @@ attachments, you should ftp all the relevant files to:
 @end itemize
 
 @node Reporting mysqltest bugs,  , extending mysqltest, MySQL test suite
-@subsection Extending the MySQL Test Suite
+@subsection Reporting bugs in the MySQL Test Suite
 
 If your @strong{MySQL} version doesn't pass the test suite you should
 do the following:
@@ -42593,6 +42580,10 @@ so that we can examine it. Please remember to also include a full
 description of your system, the version of the mysqld binary and how you
 compiled it.
 
+@item
+Try also to run @code{mysql-test-run} with the @code{--force} option to
+see if there is any other test that fails.
+
 @item
 If you have compiled @strong{MySQL} yourself, check our manual for how
 to compile @strong{MySQL} on your platform or, preferable, use one of
@@ -44538,6 +44529,8 @@ not yet 100% confident in this code.
 @appendixsubsec Changes in release 3.23.39
 @itemize @bullet
 @item
+Fixed problem with @code{IF()} and number of decimals in the result.
+@item
 Fixed that date-part extract functions works with dates where day
 and/or month is 0.
 @item

client/mysqladmin.c

@@ -28,7 +28,7 @@
 #include <my_pthread.h>				/* because of signal()	*/
 #endif
 
-#define ADMIN_VERSION "8.20"
+#define ADMIN_VERSION "8.21"
 #define MAX_MYSQL_VAR 64
 #define SHUTDOWN_DEF_TIMEOUT 3600		/* Wait for shutdown */
 #define MAX_TRUNC_LENGTH 3
@@ -870,7 +870,7 @@ static int drop_db(MYSQL *mysql, const char *db)
       return -1;
     }
   }
-  sprintf(name_buff,"drop database %.*s",FN_REFLEN,db);
+  sprintf(name_buff,"drop database `%.*s`",FN_REFLEN,db);
   if (mysql_query(mysql,name_buff))
   {
     my_printf_error(0,"DROP DATABASE %s failed;\nerror: '%s'",MYF(ME_BELL),

client/mysqlcheck.c

@@ -338,7 +338,7 @@ static int get_options(int *argc, char ***argv)
   {
     int pnlen = strlen(my_progname);
 
-    if (pnlen < 6) // name too short
+    if (pnlen < 6) /* name too short */
       what_to_do = DO_CHECK;
     else if (!strcmp("repair", my_progname + pnlen - 6))
       what_to_do = DO_REPAIR;

libmysql/net.c

@@ -34,7 +34,6 @@
 #include <signal.h>
 #include <errno.h>
 #include <sys/types.h>
-#include <violite.h>
 
 #ifdef MYSQL_SERVER
 ulong max_allowed_packet=65536;

mysql-test/mysql-test-run.sh

@@ -300,8 +300,9 @@ show_failed_diff ()
     echo "-------------------------------------------------------"
     $DIFF -c $result_file $reject_file
     echo "-------------------------------------------------------"
-    echo "Please e-mail the above, along with the output of mysqlbug"
-    echo "and any other relevant info to bugs@lists.mysql.com"
+    echo "Please follow the instructions outlined at"
+    echo "http://www.mysql.com/doc/R/e/Reporting_mysqltest_bugs.html"
+    echo "to find the reason to this problem and how to report this."
   fi  
 }
 

mysql-test/r/func_test.result

@@ -34,3 +34,5 @@ this	is	a	2	2.0
 1	1
 1 and 0 or 2	2 or 1 and 0
 1	1
+sum(if(num is null,0.00,num))
+144.54

mysql-test/t/func_test.test

@@ -24,3 +24,13 @@ select -1.49 or -1.49,0.6 or 0.6;
 select 5 between 0 and 10 between 0 and 1,(5 between 0 and 10) between 0 and 1;
 select 1 and 2 between 2 and 10, 2 between 2 and 10 and 1;
 select 1 and 0 or 2, 2 or 1 and 0;
+
+#
+# Problem with IF()
+#
+
+drop table if exists t1;
+create table t1 (num  double(12,2));
+insert into t1 values (144.54);
+select sum(if(num is null,0.00,num)) from t1;
+drop table t1;

mysys/mf_pack.c

@@ -236,11 +236,16 @@ void symdirget(char *dir)
     *pos++=temp; *pos=0;	  /* Restore old filename */
     if (fp)
     {
-      if (fgets(buff, sizeof(buff), fp))
+      if (fgets(buff, sizeof(buff)-1, fp))
       {
 	for (pos=strend(buff);
 	     pos > buff && (iscntrl(pos[-1]) || isspace(pos[-1])) ;
 	     pos --);
+
+	/* Ensure that the symlink ends with the directory symbol */
+	if (pos == buff || pos[-1] != FN_LIBCHAR)
+	  *pos++=FN_LIBCHAR;
+
 	strmake(dir,buff, (uint) (pos-buff));
       }
       my_fclose(fp,MYF(0));

sql/item_cmpfunc.cc

@@ -487,7 +487,7 @@ Item_func_if::fix_length_and_dec()
 {
   maybe_null=args[1]->maybe_null || args[2]->maybe_null;
   max_length=max(args[1]->max_length,args[2]->max_length);
-  decimals=max(args[0]->decimals,args[1]->decimals);
+  decimals=max(args[1]->decimals,args[2]->decimals);
   enum Item_result arg1_type=args[1]->result_type();
   enum Item_result arg2_type=args[2]->result_type();
   if (arg1_type == STRING_RESULT || arg2_type == STRING_RESULT)

sql/mysqlbinlog.cc

@@ -303,13 +303,11 @@ static void dump_remote_log_entries(const char* logname)
   uint len;
   NET* net = &mysql->net;
   if(!position) position = 4; // protect the innocent from spam
-  if(position < 4)
+  if (position < 4)
   {
     position = 4;
     // warn the guity
-      fprintf(stderr,
-      "Warning: with the position so small you would hit the magic number\n\
-Unfortunately, no sweepstakes today, adjusted position to 4\n");
+    sql_print_error("Warning: The position in the binary log can't be less than 4.\nStarting from position 4\n");
   }
   int4store(buf, position);
   int2store(buf + 4, binlog_flags);

sql/sql_repl.cc

@@ -297,10 +297,9 @@ void mysql_binlog_send(THD* thd, char* log_ident, ulong pos, ushort flags)
   if ((file=open_binlog(&log, log_file_name, &errmsg)) < 0)
     goto err;
 
-  if(pos < 4)
+  if (pos < 4)
   {
-    errmsg = "Congratulations! You have hit the magic number and can win \
-sweepstakes if you report the bug";
+    errmsg = "Client requested master to start repliction from impossible position.\n";
     goto err;
   }