Cannot build OQGRAPH table on a table having special chars

CREATE TABLE `x tab` (

	a INT UNSIGNED NOT NULL,

	b INT UNSIGNED NOT NULL,

	PRIMARY KEY (a, b),

	KEY (b)

)

	ENGINE = InnoDB;

INSERT INTO `x tab` (a, b) VALUES (1, 2), (2, 3), (3, 4), (2, 10), (10, 11);

SELECT * FROM `x tab`;

CREATE TABLE xoq (

	latch VARCHAR(32) NULL

	, origid BIGINT UNSIGNED NULL

	, destid BIGINT UNSIGNED NULL

	, weight DOUBLE NULL

	, seq BIGINT UNSIGNED NULL

	, linkid BIGINT UNSIGNED NULL

	, KEY (latch, origid, destid) USING HASH

	, KEY (latch, destid, origid) USING HASH

)

	ENGINE = OQGRAPH

	DATA_TABLE = 'x tab'

	ORIGID = 'a'

	DESTID = 'b';

SELECT *

	FROM xoq

	WHERE latch = 'breadth_first'

		AND origid = 1

		AND destid = 3;