$post_query = new WP_Query(
array(
'post_type' => 'post',
'post_status' => 'publish',
'posts_per_page' => '1', // SAME AS LIMIT 1 on SQL
'orderby' => 'title',
'order' => 'ASC',
'no_found_rows' => true,
'update_post_term_cache' => false,
'update_post_meta_cache' => false,
'cache_results' => false
)
);
/*
no_found_rows (boolean) – make it true when you don’t need any pagination
and don’t need the count for total number of posts found.
cache_results (boolean) – Post information cache.
update_post_meta_cache (boolean) – Post meta information cache.
update_post_term_cache (boolean) – Post term information cache.
*/