Fixing filename case problems in sql_base.cc for views on MacOS X. (With help from sanja :)

sql/sql_base.cc:
  Fixing filename case problems for views on MacOS X. (With help from sanja :)

sql/sql_base.cc

@@ -582,6 +582,7 @@ TABLE_LIST *find_table_in_list(TABLE_LIST *table,
       if ((!strcmp(table->db, db_name) &&
            !strcmp(table->real_name, table_name)) ||
           (table->view &&
+           table->table->table_cache_key &&    // it is not temporary table
            !my_strcasecmp(table_alias_charset,
                           table->table->table_cache_key, db_name) &&
            !my_strcasecmp(table_alias_charset,
@@ -626,6 +627,9 @@ TABLE_LIST* unique_table(TABLE_LIST *table, TABLE_LIST *table_list)
   TABLE_LIST *res;
   const char *d_name= table->db, *t_name= table->real_name;
   char d_name_buff[MAX_ALIAS_NAME], t_name_buff[MAX_ALIAS_NAME];
+  /* temporary table is always unique */
+  if (table->table && table->table->tmp_table != NO_TMP_TABLE)
+    return 0;
   if (table->view)
   {
     /* it is view and table opened */
@@ -643,11 +647,6 @@ TABLE_LIST* unique_table(TABLE_LIST *table, TABLE_LIST *table_list)
       d_name= table->table->table_cache_key;
       t_name= table->table->table_name;
     }
-    if (d_name == 0)
-    {
-      /* it's temporary table => always unique */
-      return 0;
-    }
   }
 
   DBUG_PRINT("info", ("real table: %s.%s", d_name, t_name));