WordPress::Wp_Query with field ids

wp_query_fields_ids.php

<?php

$args = array(
	'post_type' => 'custom-post',
	'posts_per_page' => 10,
	'post_status' => 'publish',
	'author' => 1,
	'fields' => 'ids',
	'tax_query' => array(
		array(
			'taxonomy' => 'custom-tax',
			'field' => 'name',
			'terms' => 'new-term',
		),
	),
);

$the_query = new WP_Query($args);
$ids = array();

/* result post ids */
if($the_query->have_posts()) {
	$ids = $the_query->posts;
}