Why avoid post__not_in?

While working with Distributor we at 10up met a performance issue. The problem happened during the filter out of large posts list (200 records): the REST performed slower than WP VIP expected script execution time (which is 3 seconds). Initially one of the ideas was to update the query removing post__not_in and adding custom filtering.… Continue reading Why avoid post__not_in?

Categorized as Research