diff -urNad mysql-dfsg-4.0.24/sql/sql_acl.cc /home/seanius/tmp/dpep.p65N7m/mysql-dfsg-4.0.24/sql/sql_acl.cc
--- mysql-dfsg-4.0.24/sql/sql_acl.cc	2005-03-04 19:38:15.000000000 -0500
+++ /home/seanius/tmp/dpep.p65N7m/mysql-dfsg-4.0.24/sql/sql_acl.cc	2005-03-30 19:33:43.456668031 -0500
@@ -855,6 +855,9 @@
 
 /*
   Get privilege for a host, user and db combination
+
+  as db_is_pattern changes the semantics of comparison,
+  acl_cache is not used if db_is_pattern is set.
 */
 
 ulong acl_get(const char *host, const char *ip, const char *bin_ip,
@@ -875,7 +878,7 @@
     db=tmp_db;
   }
   key_length=(uint) (end-key);
-  if ((entry=(acl_entry*) acl_cache->search(key,key_length)))
+  if (!db_is_pattern && (entry=(acl_entry*) acl_cache->search(key,key_length)))
   {
     db_access=entry->access;
     VOID(pthread_mutex_unlock(&acl_cache->lock));
@@ -923,7 +926,8 @@
   }
 exit:
   /* Save entry in cache for quick retrieval */
-  if ((entry= (acl_entry*) malloc(sizeof(acl_entry)+key_length)))
+  if (!db_is_pattern &&
+      (entry= (acl_entry*) malloc(sizeof(acl_entry)+key_length)))
   {
     entry->access=(db_access & host_access);
     entry->length=key_length;
diff -urNad mysql-dfsg-4.0.24/sql/sql_parse.cc /home/seanius/tmp/dpep.p65N7m/mysql-dfsg-4.0.24/sql/sql_parse.cc
--- mysql-dfsg-4.0.24/sql/sql_parse.cc	2005-03-04 19:38:14.000000000 -0500
+++ /home/seanius/tmp/dpep.p65N7m/mysql-dfsg-4.0.24/sql/sql_parse.cc	2005-03-30 19:34:41.802999951 -0500
@@ -2704,6 +2704,7 @@
   DBUG_PRINT("enter",("want_access: %lu  master_access: %lu", want_access,
 		      thd->master_access));
   ulong db_access,dummy;
+  bool  db_is_pattern= test(want_access & GRANT_ACL);
   if (save_priv)
     *save_priv=0;
   else
@@ -2725,9 +2726,9 @@
     */
     db_access= thd->db_access;
     if (!(thd->master_access & SELECT_ACL) &&
-	(db && (!thd->db || strcmp(db,thd->db))))
+	(db && (!thd->db || db_is_pattern || strcmp(db,thd->db))))
       db_access=acl_get(thd->host, thd->ip, (char*) &thd->remote.sin_addr,
-			thd->priv_user, db, 0); /* purecov: inspected */
+			thd->priv_user, db, db_is_pattern);
     *save_priv=thd->master_access | db_access;
     DBUG_RETURN(FALSE);
   }
@@ -2745,9 +2746,9 @@
   if (db == any_db)
     DBUG_RETURN(FALSE);				// Allow select on anything
 
-  if (db && (!thd->db || strcmp(db,thd->db)))
+  if (db && (!thd->db || db_is_pattern || strcmp(db,thd->db)))
     db_access=acl_get(thd->host, thd->ip, (char*) &thd->remote.sin_addr,
-		      thd->priv_user, db, 0); /* purecov: inspected */
+		      thd->priv_user, db, db_is_pattern);
   else
     db_access=thd->db_access;
   // Remove SHOW attribute and access rights we already have