Mediawiki 1.17.0 $wgSharedUploadDBname error

I tried Mediawiki 1.17.0 and set common database for all upload files by variable $wgSharedUploadDBname, and uploading file got warnings and fatal error.

Warning: mysql_real_escape_string() expects parameter 2 to be resource, null given in /includes/db/DatabaseMysql.php on line 316 
Warning: mysql_query() expects parameter 2 to be resource, null given in /includes/db/DatabaseMysql.php on line 23
Warning: mysql_query() expects parameter 2 to be resource, null given in /includes/db/DatabaseMysql.php on line 23
Warning: mysql_real_escape_string() expects parameter 2 to be resource, null given in /includes/db/DatabaseMysql.php on line 316 
Warning: mysql_real_escape_string() expects parameter 2 to be resource, null given in /includes/db/DatabaseMysql.php on line 316 
Warning: mysql_query() expects parameter 2 to be resource, null given in /includes/db/DatabaseMysql.php on line 23
Warning: mysql_real_escape_string() expects parameter 2 to be resource, null given in /includes/db/DatabaseMysql.php on line 316 
Warning: mysql_query() expects parameter 2 to be resource, null given in /includes/db/DatabaseMysql.php on line 23 
Warning: Invalid argument supplied for foreach() in /includes/filerepo/LocalRepo.php on line 169 
Fatal error: Call to a member function free() on a non-object in /includes/filerepo/LocalRepo.php on line 172 

So if you need $wgSharedUploadDBname, it is better not to use Mediawiki 1.17.0, yet use the older version 1.16.5.