Fixed mysqldumpslow for new dump format.

Fix for HEAP tables with many rows deleted.
Add '' arround database names in SHOW GRANT


Docs/manual.texi:
  Fixed symlink examples.
heap/hp_rfirst.c:
  Remove not needed patch.
mysql-test/r/heap.result:
  Added test case for HEAP + many deletes
mysql-test/t/heap.test:
  Added test case for HEAP + many deletes
mysys/mf_loadpath.c:
  Resolve path's even if they don't end in '/'
scripts/mysqldumpslow.sh:
  Fix for new dump format.
sql/handler.cc:
  Fix for HEAP tables with many rows deleted.
sql/sql_acl.cc:
  Add '' arround database names in SHOW GRANT

Docs/manual.texi

@@ -6252,7 +6252,7 @@ shell> groupadd mysql
 shell> useradd -g mysql mysql
 shell> cd /usr/local
 shell> gunzip < /path/to/mysql-VERSION-OS.tar.gz | tar xvf -
-shell> ln -s mysql-VERSION-OS mysql
+shell> ln -s full-path-to-mysql-VERSION-OS mysql
 shell> cd mysql
 shell> scripts/mysql_install_db
 shell> chown -R root  .
@@ -6327,7 +6327,7 @@ Unpack the distribution and create the installation directory:
 
 @example
 shell> gunzip < /path/to/mysql-VERSION-OS.tar.gz | tar xvf -
-shell> ln -s mysql-VERSION-OS mysql
+shell> ln -s full-path-to-mysql-VERSION-OS mysql
 @end example
 
 The first command creates a directory named @file{mysql-VERSION-OS}.  The
@@ -48703,6 +48703,8 @@ Our TODO section contains what we plan to have in 4.0. @xref{TODO MySQL 4.0}.
 
 @itemize @bullet
 @item
+Fixed wrong error value when doing a @code{SELECT} with an empty HEAP table.
+@item
 Use @code{ORDER BY column DESC} now sorts @code{NULL} values first.
 @item
 Fixed bug in @code{SELECT DISTINCT ... ORDER BY DESC} optimization.

heap/hp_rfirst.c

@@ -21,11 +21,6 @@
 int heap_rfirst(HP_INFO *info, byte *record)
 {
   DBUG_ENTER("heap_rfirst");
-  if (!(info->s->records))
-  {
-    my_errno=HA_ERR_END_OF_FILE;
-    DBUG_RETURN(my_errno);
-  }
   info->current_record=0;
   info->current_hash_ptr=0;
   info->update=HA_STATE_PREV_FOUND;

mysql-test/r/heap.result

@@ -197,3 +197,9 @@ a	b
 INSERT INTO t1 VALUES (1,3);
 Duplicate entry '3' for key 1
 DROP TABLE t1;
+CREATE TABLE t1 (a int not null, primary key(a)) type=heap;
+INSERT into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11);
+DELETE from t1 where a < 100;
+SELECT * from t1;
+a
+DROP TABLE t1;

mysql-test/t/heap.test

@@ -128,3 +128,13 @@ SELECT * FROM t1 WHERE b<=>NULL;
 --error 1062
 INSERT INTO t1 VALUES (1,3);
 DROP TABLE t1;
+
+#
+# Test when deleting all rows
+#
+
+CREATE TABLE t1 (a int not null, primary key(a)) type=heap;
+INSERT into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11);
+DELETE from t1 where a < 100;
+SELECT * from t1;
+DROP TABLE t1;

mysys/mf_loadpath.c

@@ -36,8 +36,7 @@ my_string my_load_path(my_string to, const char *path,
       test_if_hard_path(path))
     VOID(strmov(buff,path));
   else if ((path[0] == FN_CURLIB && path[1] == FN_LIBCHAR) ||
-	   (is_prefix((gptr) path,FN_PARENTDIR) &&
-	    path[strlen(FN_PARENTDIR)] == FN_LIBCHAR) ||
+	   (is_prefix((gptr) path,FN_PARENTDIR)) ||
 	   ! own_path_prefix)
   {
     if (! my_getwd(buff,(uint) (FN_REFLEN-strlen(path)),MYF(0)))

scripts/mysqldumpslow.sh

@@ -75,7 +75,7 @@ while ( defined($_ = shift @pending) or defined($_ = <>) ) {
     s/^#? Time: \d{6}\s+\d+:\d+:\d+.*\n//;
     my ($user,$host) = s/^#? User\@Host:\s+(\S+)\s+\@\s+(\S+).*\n// ? ($1,$2) : ('','');
 
-    s/^# Time: (\d+)  Lock_time: (\d+)  Rows_sent: (\d+).*\n//;
+    s/^# Query_time: (\d+)  Lock_time: (\d+)  Rows_sent: (\d+).*\n//;
     my ($t, $l, $r) = ($1, $2, $3);
     $t -= $l unless $opt{l};
 
@@ -96,8 +96,12 @@ while ( defined($_ = shift @pending) or defined($_ = <>) ) {
     unless ($opt{a}) {
 	s/\b\d+\b/N/g;
 	s/\b0x[0-9A-Fa-f]+\b/N/g;
-	s/'([^\\\']|\\.|\'\')+'/'S'/g;
-	s/"([^\\\"]|\\.|\"\")+"/"S"/g;
+        s/''/'S'/g;
+        s/""/"S"/g;
+        s/(\\')//g;
+        s/(\\")//g;
+        s/'[^']+'/'S'/g;
+        s/"[^"]+"/"S"/g;
 	# -n=8: turn log_20001231 into log_NNNNNNNN
 	s/([a-z_]+)(\d{$opt{n},})/$1.('N' x length($2))/ieg if $opt{n};
 	# abbreviate massive "in (...)" statements and similar

sql/handler.cc

@@ -542,7 +542,8 @@ int handler::read_first_row(byte * buf, uint primary_key)
     If there is very few deleted rows in the table, find the first row by
     scanning the table.
   */
-  if (deleted < 10 || primary_key >= MAX_KEY)
+  if (deleted < 10 || primary_key >= MAX_KEY || 
+      !(option_flag() & HA_READ_ORDER))
   {
     (void) rnd_init();
     while ((error= rnd_next(buf)) == HA_ERR_RECORD_DELETED) ;

sql/sql_acl.cc

@@ -2743,9 +2743,9 @@ int mysql_show_grants(THD *thd,LEX_USER *lex_user)
 	    }
 	  }
 	}
-	db.append (" ON ",4);
+	db.append (" ON '",5);
 	db.append(acl_db->db);
-	db.append (".* TO '",7);
+	db.append ("'.* TO '",8);
 	db.append(lex_user->user.str,lex_user->user.length); 
 	db.append ("'@'",3);
 	db.append(lex_user->host.str, lex_user->host.length);