Wordpress - query_posts() and post__in doesn't work -

i've problem query_posts() call.

here code:

$results = $wpdb->get_results("select post_id " . $wpdb->postmeta . " meta_key = 'mashsb_shares' order cast(meta_value signed) desc limit 0, 20");  $top_ideas = array();  foreach($results $result) {     foreach($result $key => $value) {         array_push($top_ideas, $value);     } } print_r($top_ideas);  query_posts( array( 'post__in' => $top_ideas, 'orderby' => 'post__in' ) ); 

my problem posts doesn't appear in order of post__in array ($top_ideas).

here result

my print_r() shows right array, $results's query works good. problem in query_posts() call, can't find problem is...

thanks help!