I need to find the latest post for each author and then group the results so I only a single latest post for each author.
SELECT wp_posts.* FROM wp_posts
Use the below code...
$bloguser->user_id,
'showposts' => 1,
'caller_get_posts' => 1
);
$my_query = new WP_Query($args);
if( $my_query->have_posts() ) {
// $user = get_userdata($bloguser->user_id);
// echo 'This is one post for author with User ID: ' . $user->ID . ' ' . $user- >user_firstname . ' ' . $user->user_lastname;
while ($my_query->have_posts()) : $my_query->the_post(); ?>
by