[wp-hackers] WordPress MU category tables

[Tim Schoffelman]

Another question question (hopefully).

I'm building a plugin that will grab all the tables used in a WordPress MU
blog (note: I don't need all the tables, just the ones specific for that
blog the plugin is active on). The wpdb object contains the array

Install 2.7.1

    [blog_tables] => Array
        (
            [0] => posts
            [1] => categories
            [2] => post2cat
            [3] => comments
            [4] => links
            [5] => link2cat
            [6] => options
            [7] => postmeta
            [8] => terms
            [9] => term_taxonomy
            [10] => term_relationships
        )

Install 2.8.4a

    [tables] => Array
        (
            [0] => posts
            [1] => categories
            [2] => post2cat
            [3] => comments
            [4] => links
            [5] => link2cat
            [6] => options
            [7] => postmeta
            [8] => terms
            [9] => term_taxonomy
            [10] => term_relationships
        )


but in WordPress MU, the categories, post2cat & link2cat tables aren't used
(not on my installs anyways 2.7.1 && 2.8.4a). IE - there's no
wp_4_categories or wp_categories table.

I'm having to rely on something like this to pull the correct tables (but
feel as I shouldn't have too).

class BlogTables {
	function selectNames() {
		global $table_prefix, $wpdb;

		$sql		= "SHOW TABLES LIKE '".$prefix."%'";
		$avail_tables 	= $wpdb->get_results($sql);

		foreach ($avail_tables as $tables) {
			foreach($tables as $key => $table){
				$blog_tables[] = $table;
			}
		}
		return $blog_tables;
	}
}


Is there a better way or has this been or will this be corrected / changed
in the 2.8.6 or 2.9.* version(s)?