Can ordering post list by meta_value cause performance issue?
meta_query & tax_query behavior When you’re defining a meta/tax_query and make use of the new array style argument list for multiple sets of term or custom field keys, then your query might look close to the following array( ‘tax_query’ => array( ‘relation’ => ‘OR’, array(‘taxonomy’ => ‘tax1’, ‘field’ => ‘slug’, ‘terms’ => ‘term1’), array(‘taxonomy’ => … Read more