KICA school meta query
$meta_query = array( 'relation' => 'OR', array( 'key' => 'cds_code', 'value' => '134', 'compare' => '=', 'type' => 'CHAR', ), array( 'key' => 'street_postal', 'value' => '1234', 'compare' => 'LIKE', 'type' => 'CHAR', ), array( 'key' => 'mailing_postal', 'value' => '1234', 'compare' => 'LIKE', 'type' => 'CHAR', ), );