WordPress at a glance
filter is not described

posts_results filter-hook . WP 2.3.0

Filters the raw post results array, prior to status checks.

Usage

add_filter( 'posts_results', 'filter_function_name_7479', 10, 2 );
function filter_function_name_7479( $posts, $this ){
	// filter...

	return $posts;
}
$posts(array)
The post results array.
$this(WP_Query)
The WP_Query instance (passed by reference).

Where the hook is called

WP_Query::get_posts()
wp-includes/class-wp-query.php 2850
$this->posts = apply_filters_ref_array( 'posts_results', array( $this->posts, &$this ) );

Where the hook is used (in WP core)

Does not used.