WP_Meta_Query

22#[AllowDynamicProperties]23class WP_Meta_Query {24	/**25	 * Array of metadata queries.26	 *27	 * See WP_Meta_Query::__construct() for information on meta query arguments.28	 *29	 * @since 3.2.030	 * @var array31	 */32	public $queries = array();33 34	/**35	 * The relation between the queries. Can be one of 'AND' or 'OR'.36	 *37	 * @since 3.2.038	 * @var string39	 */40	public $relation;41 42	/**43	 * Database table to query for the metadata.44	 *45	 * @since 4.1.046	 * @var string47	 */48	public $meta_table;49 50	/**51	 * Column in meta_table that represents the ID of the object the metadata belongs to.52	 *53	 * @since 4.1.054	 * @var string55	 */56	public $meta_id_column;57 58	/**59	 * Database table that where the metadata's objects are stored (eg $wpdb->users).60	 *61	 * @since 4.1.062	 * @var string63	 */64	public $primary_table;65 66	/**67	 * Column in primary_table that represents the ID of the object.68	 *69	 * @since 4.1.070	 * @var string71	 */72	public $primary_id_column;73 74	/**75	 * A flat list of table aliases used in JOIN clauses.76	 *77	 * @since 4.1.078	 * @var array79	 */80	protected $table_aliases = array();81 82	/**83	 * A flat list of clauses, keyed by clause 'name'.84	 *85	 * @since 4.2.086	 * @var array87	 */88	protected $clauses = array();89 90	/**91	 * Whether the query contains any OR relations.92	 *93	 * @since 4.3.094	 * @var bool95	 */96	protected $has_or_relation = false;97 98	/**99	 * Constructor.100	 *101	 * @since 3.2.0