public function get() {
		global $wpdb;

		$this->operation = 'SELECT *';

		// If the query is invalid, don't return a single result.
		if ( $this->invalid ) {
			return [];
		}

		$SQL             = $this->get_sql();
		$this->queries[] = $SQL;
		$results         = [];

		if ( $this->execute_queries ) {
			$results = $wpdb->get_results(
				$SQL,
				ARRAY_A
			);
		}

		if ( ARRAY_A === $this->output_format ) {
			return $results;
		}

		if ( ARRAY_N === $this->output_format ) {
			return array_map( 'array_values', $results );
		}

		return $this->create_collection( $results );
	}