high performance

I'm assuming it's too late, but if not here's an easy performance win for D6:

http://drupal.org/node/215080

<

blockquote>The type column of the {system} table is currently a varchar(255) field. Yet in 99% of all Drupal installations it stores either the text 'module' or the text 'theme' and nothing else. This is already a strong case for making it an int column and defining constants for module and theme. Then, on every page, there is this query:
SELECT filename FROM system WHERE name = 'user' AND type = 'module';