Date query
$date_query = array( 'relation' => 'AND', array( 'year' => 2019, 'month' => 1, 'day' => 2, 'compare' => '>=', 'column' => 'post_date', ), array( 'year' => 2019, 'month' => 1, 'day' => 4, 'compare' => '<=', 'column' => 'post_date', ), );
$date_query = array( 'relation' => 'AND', array( 'year' => 2019, 'month' => 1, 'day' => 2, 'compare' => '>=', 'column' => 'post_date', ), array( 'year' => 2019, 'month' => 1, 'day' => 4, 'compare' => '<=', 'column' => 'post_date', ), );