[support] setting dst in url_alias table to 255 length

[Hans Langouche]

  Hi there,

I know it's bad practice but would there be any major implications (in 
e.g. updates) if I change the dst length in url_alias to 255 in stead of 
128 ?

My use case is that I have a bunch of aliassen based on menu_path (a 
product catalogue) and with the catalogue going up to 4 levels down the 
paths can get long (longer then 128).  I know about this patch 
(http://drupal.org/node/288946), just want to figure out if this is 
"common" practice or a big nono.

Tnx,

Hans