Wordpress - Override the default number of posts to show for a single loop?
The argument that controls how many posts are shown in the query is posts_per_page
<?php query_posts( array(
'post_type' => 'post',
'posts_per_page' => -1 )
);
?>
Also to note is that there is a bug in the 3.0 branch which prevents the -1 integer from displaying all posts. It is fixed in 3.1 but a workaround would be to use a very high number instead of -1
see:
http://core.trac.wordpress.org/ticket/15150