Merge work:/home/bk/mysql into hundin.mysql.fi:/my/bk/mysql

BitKeeper/etc/logging_ok:
  auto-union
Docs/manual.texi:
  Auto merged

BitKeeper/etc/logging_ok

 Miguel@light.local
+monty@hundin.mysql.fi
 paul@central.snake.net

Docs/manual.texi

@@ -46854,6 +46854,9 @@ not yet 100% confident in this code.
 @appendixsubsec Changes in release 3.23.43
 @itemize @bullet
 @item
+Fixed unlikely bug, which returned not matching rows, in SELECT with
+many tables and multi-column indexes and 'range' type.
+@item
 Fixed a unlikely core-dump bug when doing @code{EXPLAIN SELECT} when using
 many tables and @code{ORDER BY}.
 @item

acinclude.m4

@@ -1106,7 +1106,7 @@ changequote([, ])dnl
 AC_DEFUN(AC_SYS_LARGEFILE,
   [AC_REQUIRE([AC_CANONICAL_HOST])
    AC_ARG_ENABLE(largefile,
-     [  --disable-large-files   Omit support for large files])
+     [  --disable-largefile    Omit support for large files])
    if test "$enable_largefile" != no; then
      AC_CHECK_TOOL(GETCONF, getconf)
      AC_SYS_LARGEFILE_FLAGS(CFLAGS)

mysql-test/r/join.result

@@ -20,3 +20,5 @@ id	catid	stateid	countyid
 a
 1
 2
+a	a	b
+2	2	3

mysql-test/r/null_key.result

@@ -11,7 +11,7 @@ t1	index	NULL	a	9	NULL	12	where used; Using index
 table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	range	a,b	a	9	NULL	3	where used; Using index
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t1	ref	a,b	b	4	const	2	where used
+t1	range	a,b	a	9	NULL	2	where used; Using index
 table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	ref	a,b	a	5	const	3	where used; Using index
 table	type	possible_keys	key	key_len	ref	rows	Extra

mysql-test/t/join.test

@@ -89,3 +89,26 @@ select t1.a from t1 as t1 left join t1 as t2 using (a) left join t1 as t3 using
 --error 1116
 select t1.a from t1 as t1 left join t1 as t2 using (a) left join t1 as t3 using (a) left join t1 as t4 using (a) left join t1 as t5 using (a) left join t1 as t6 using (a) left join t1 as t7 using (a) left join t1 as t8 using (a) left join t1 as t9 using (a) left join t1 as t10 using (a) left join t1 as t11 using (a) left join t1 as t12 using (a) left join t1 as t13 using (a) left join t1 as t14 using (a) left join t1 as t15 using (a) left join t1 as t16 using (a) left join t1 as t17 using (a) left join t1 as t18 using (a) left join t1 as t19 using (a) left join t1 as t20 using (a) left join t1 as t21 using (a) left join t1 as t22 using (a) left join t1 as t23 using (a) left join t1 as t24 using (a) left join t1 as t25 using (a) left join t1 as t26 using (a) left join t1 as t27 using (a) left join t1 as t28 using (a) left join t1 as t29 using (a) left join t1 as t30 using (a) left join t1 as t31 using (a) left join t1 as t32 using (a) left join t1 as t33 using (a) left join t1 as t34 using (a) left join t1 as t35 using (a) left join t1 as t36 using (a) left join t1 as t37 using (a) left join t1 as t38 using (a) left join t1 as t39 using (a) left join t1 as t40 using (a) left join t1 as t41 using (a) left join t1 as t42 using (a) left join t1 as t43 using (a) left join t1 as t44 using (a) left join t1 as t45 using (a) left join t1 as t46 using (a) left join t1 as t47 using (a) left join t1 as t48 using (a) left join t1 as t49 using (a) left join t1 as t50 using (a) left join t1 as t51 using (a) left join t1 as t52 using (a) left join t1 as t53 using (a) left join t1 as t54 using (a) left join t1 as t55 using (a) left join t1 as t56 using (a) left join t1 as t57 using (a) left join t1 as t58 using (a) left join t1 as t59 using (a) left join t1 as t60 using (a) left join t1 as t61 using (a) left join t1 as t62 using (a) left join t1 as t63 using (a) left join t1 as t64 using (a) left join t1 as t65 using (a);
 drop table t1;
+
+#
+# Simple join test. This failed in 3.23.42, there should have been
+# no matches, still three matches were found.
+#
+ 
+CREATE TABLE t1 (
+  a int(11) NOT NULL,
+  b int(11) NOT NULL,
+  PRIMARY KEY  (a,b)
+) TYPE=MyISAM;
+ 
+INSERT INTO t1 VALUES (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(1,7),(2,3);
+ 
+CREATE TABLE t2 (
+  a int(11) default NULL
+) TYPE=MyISAM;
+ 
+INSERT INTO t2 VALUES (2),(3);
+ 
+SELECT t1.a,t2.a,b FROM t1,t2 WHERE t1.a=t2.a AND (t1.a=1 OR t1.a=2) AND b>=1 AND b<=3;
+ 
+DROP TABLE t1, t2;

mysys/my_open.c

@@ -75,8 +75,8 @@ int my_close(File fd, myf MyFlags)
     pthread_mutex_destroy(&my_file_info[fd].mutex);
 #endif
     my_file_info[fd].type = UNOPEN;
-    my_file_opened--;
   }
+  my_file_opened--;
   pthread_mutex_unlock(&THR_LOCK_open);
   DBUG_RETURN(err);
 } /* my_close */
@@ -96,9 +96,8 @@ File my_register_filename(File fd, const char *FileName, enum file_type
 	my_error(EE_OUT_OF_FILERESOURCES, MYF(ME_BELL+ME_WAITTANG),
 		 FileName, my_errno);
       return(-1);
-#else
-      thread_safe_increment(my_file_opened,&THR_LOCK_open);
 #endif
+      thread_safe_increment(my_file_opened,&THR_LOCK_open);
       return(fd);				/* safeguard */
     }
     pthread_mutex_lock(&THR_LOCK_open);

scripts/mysql_fix_privilege_tables.sh

@@ -3,8 +3,8 @@
 echo "This scripts updates the mysql.user, mysql.db, mysql.host and the"
 echo "mysql.func table to MySQL 3.22.14 and above."
 echo ""
-echo "This is needed if you want to use the new GRANT functions or"
-echo "want to use the more secure passwords."
+echo "This is needed if you want to use the new GRANT functions,"
+echo "CREATE AGGREAGATE FUNCTION or want to use the more secure passwords in 3.23"
 echo ""
 echo "If you get Access denied errors, you should run this script again"
 echo "and give the MySQL root user password as a argument!"
@@ -15,13 +15,12 @@ host="localhost"
 # Fix old password format, add File_priv and func table
 echo ""
 echo "If your tables are already up to date or partially up to date you will"
-echo "get some warnings about 'Duplicated column name' or"
-echo "'Table 'func' already exists'. You can safely ignore these!"
+echo "get some warnings about 'Duplicated column name'. You can safely ignore these!"
 
 @bindir@/mysql -f --user=root --password="$root_password" --host="$host" mysql <<END_OF_DATA
 alter table user change password password char(16) NOT NULL;
 alter table user add File_priv enum('N','Y') NOT NULL;
-CREATE TABLE func (
+CREATE TABLE if not exists func (
   name char(64) DEFAULT '' NOT NULL,
   ret tinyint(1) DEFAULT '0' NOT NULL,
   dl char(128) DEFAULT '' NOT NULL,
@@ -64,7 +63,7 @@ fi
 echo "Creating the new table and column privilege tables"
 
 @bindir@/mysql -f --user=root --password="$root_password"  --host="$host" mysql <<END_OF_DATA
-CREATE TABLE tables_priv (
+CREATE TABLE IF NOT EXISTS tables_priv (
   Host char(60) DEFAULT '' NOT NULL,
   Db char(60) DEFAULT '' NOT NULL,
   User char(16) DEFAULT '' NOT NULL,
@@ -75,7 +74,7 @@ CREATE TABLE tables_priv (
   Column_priv set('Select','Insert','Update','References') DEFAULT '' NOT NULL,
   PRIMARY KEY (Host,Db,User,Table_name)
 );
-CREATE TABLE columns_priv (
+CREATE TABLE IF NOT EXISTS columns_priv (
   Host char(60) DEFAULT '' NOT NULL,
   Db char(60) DEFAULT '' NOT NULL,
   User char(16) DEFAULT '' NOT NULL,

sql/sql_select.cc

@@ -2258,7 +2258,20 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
     {
       JOIN_TAB *tab=join->join_tab+i;
       table_map current_map= tab->table->map;
+      bool use_quick_range=0;
       used_tables|=current_map;
+
+      if (tab->type == JT_REF && tab->quick &&
+	  tab->ref.key_length < tab->quick->max_used_key_length)
+      {
+	/* Range uses longer key;  Use this instead of ref on key */
+	tab->type=JT_ALL;
+	use_quick_range=1;
+	tab->use_quick=1;
+	tab->ref.key_parts=0;		// Don't use ref key.
+	join->best_positions[i].records_read=tab->quick->records;
+      }
+
       COND *tmp=make_cond_for_table(cond,used_tables,current_map);
       if (!tmp && tab->quick)
       {						// Outer join
@@ -2301,7 +2314,7 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
 	  if (tab->const_keys && tab->table->reginfo.impossible_range)
 	    DBUG_RETURN(1);
 	}
-	else if (tab->type == JT_ALL)
+	else if (tab->type == JT_ALL && ! use_quick_range)
 	{
 	  if (tab->const_keys &&
 	      tab->table->reginfo.impossible_range)
@@ -2356,15 +2369,6 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
 	    }
 	  }
 	}
-	if (tab->type == JT_REF && sel->quick &&
-	    tab->ref.key_length < sel->quick->max_used_key_length)
-	{
-	  /* Range uses longer key;  Use this instead of ref on key */
-	  tab->type=JT_ALL;
-	  tab->use_quick=1;
-	  tab->ref.key_parts=0;		// Don't use ref key.
-	  join->best_positions[i].records_read=sel->quick->records;
-	}
       }
     }
   }

sql/udf_example.cc

@@ -66,7 +66,7 @@
 ** You can easily get all switches right by doing:
 ** cd sql ; make udf_example.o
 ** Take the compile line that make writes, remove the '-c' near the end of
-** the line and add -o udf_example.so to the end of the compile line.
+** the line and add -shared -o udf_example.so to the end of the compile line.
 ** The resulting library (udf_example.so) should be copied to some dir
 ** searched by ld. (/usr/lib ?)
 **
@@ -97,6 +97,13 @@
 ** Active function will be reloaded on every restart of server
 ** (if --skip-grant-tables is not given)
 **
+** If you ge problems with undefined symbols when loading the shared
+** library, you should verify that mysqld is compiled with the -rdynamic
+** option.
+**
+** If you can't get AGGREGATES to work, check that you have the column
+** 'type' in the mysql.func table.  If not, run 'mysql_fix_privilege_tables'.
+**
 */
 
 #ifdef STANDARD
@@ -128,6 +135,11 @@ my_bool sequence_init(UDF_INIT *initid, UDF_ARGS *args, char *message);
  void sequence_deinit(UDF_INIT *initid);
 long long sequence(UDF_INIT *initid, UDF_ARGS *args, char *is_null,
 		   char *error);
+my_bool avgcost_init( UDF_INIT* initid, UDF_ARGS* args, char* message );
+void avgcost_deinit( UDF_INIT* initid );
+void avgcost_reset( UDF_INIT* initid, UDF_ARGS* args, char* is_null, char *error );
+void avgcost_add( UDF_INIT* initid, UDF_ARGS* args, char* is_null, char *error );
+double avgcost( UDF_INIT* initid, UDF_ARGS* args, char* is_null, char *error );
 }
 
 
@@ -766,6 +778,7 @@ char *reverse_lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
   *res_length=(ulong) (strmov(result,hp->h_name) - result);
   return result;
 }
+#endif // defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
 
 /*
 ** Syntax for the new aggregate commands are:
@@ -777,13 +790,6 @@ char *reverse_lookup(UDF_INIT *initid, UDF_ARGS *args, char *result,
 ** (this example is provided by Andreas F. Bobak <bobak@relog.ch>)
 */
 
-extern "C" {
-my_bool avgcost_init( UDF_INIT* initid, UDF_ARGS* args, char* message );
-void avgcost_deinit( UDF_INIT* initid );
-void avgcost_reset( UDF_INIT* initid, UDF_ARGS* args, char* is_null, char *error );
-void avgcost_add( UDF_INIT* initid, UDF_ARGS* args, char* is_null, char *error );
-double avgcost( UDF_INIT* initid, UDF_ARGS* args, char* is_null, char *error );
-}
 
 struct avgcost_data
 {
@@ -810,7 +816,7 @@ avgcost_init( UDF_INIT* initid, UDF_ARGS* args, char* message )
     return 1;
   }
 
-  if ((args->arg_type[0] != INT_RESULT) && (args->arg_type[1] != REAL_RESULT) )
+  if ((args->arg_type[0] != INT_RESULT) || (args->arg_type[1] != REAL_RESULT) )
   {
     strcpy(
 	   message,
@@ -917,5 +923,4 @@ avgcost( UDF_INIT* initid, UDF_ARGS* args, char* is_null, char* error )
   return data->totalprice/double(data->totalquantity);
 }
 
-#endif // defined(HAVE_GETHOSTBYADDR_R) && defined(HAVE_SOLARIS_STYLE_GETHOST)
 #endif /* HAVE_DLOPEN */