
CREATE TABLE product (category INT NOT NULL, id INT NOT NULL,
    price DECIMAL,
    PRIMARY KEY(category, id)) ENGINE=INNODB;
CREATE TABLE customer (id INT NOT NULL,
    PRIMARY KEY (id)) ENGINE=INNODB;
CREATE TABLE product_order (no INT NOT NULL AUTO_INCREMENT,
    product_category INT NOT NULL,
    product_id INT NOT NULL,
    customer_id INT NOT NULL,
    PRIMARY KEY(no),
    INDEX (product_category, product_id),
    FOREIGN KEY (product_category, product_id)
    REFERENCES product(category, id)
    ON UPDATE CASCADE ON DELETE RESTRICT,
    INDEX (customer_id),
    FOREIGN KEY (customer_id)
    REFERENCES customer(id)) ENGINE=INNODB;

SET foreign_key_checks=0;
CREATE TABLE bug56143_1 (a INT, KEY(a)) ENGINE=INNODB;

CREATE TABLE `bug56143_2` (
  `a` int DEFAULT NULL,
  KEY `a` (`a`),
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa1` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa10` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa100` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa101` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa102` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa103` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa104` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa105` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa106` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa107` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa108` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa109` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa11` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa110` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa111` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa112` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa113` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa114` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa115` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa116` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa117` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa118` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa119` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa12` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa120` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa121` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa122` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa123` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa124` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa125` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa126` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa127` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa128` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa129` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa13` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa130` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa131` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa132` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa133` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa134` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa135` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa136` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa137` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa138` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa139` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa14` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa140` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa141` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa142` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa143` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa144` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa145` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa146` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa147` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa148` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa149` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa15` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa150` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa151` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa152` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa153` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa154` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa155` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa156` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa157` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa158` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa159` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa16` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa160` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa161` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa162` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa163` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa164` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa165` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa166` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa167` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa168` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa169` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa17` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa170` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa171` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa172` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa173` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa174` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa175` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa176` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa177` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa178` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa179` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa18` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa180` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa181` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa182` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa183` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa184` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa185` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa186` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa187` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa188` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa189` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa19` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa190` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa191` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa192` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa193` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa194` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa195` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa196` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa197` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa198` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa199` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa2` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa20` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa200` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa201` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa202` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa203` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa204` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa205` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa206` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa207` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa208` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa209` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa21` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa210` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa211` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa212` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa213` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa214` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa215` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa216` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa217` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa218` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa219` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa22` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa220` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa221` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa222` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa223` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa224` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa225` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa226` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa227` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa228` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa229` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa23` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa230` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa231` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa232` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa233` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa234` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa235` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa236` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa237` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa238` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa239` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa24` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa240` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa241` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa242` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa243` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa244` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa245` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa246` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa247` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa248` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa249` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa25` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa250` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa251` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa252` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa253` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa254` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa255` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa256` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa257` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa258` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa259` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa26` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa260` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa261` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa262` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa263` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa264` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa265` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa266` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa267` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa268` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa269` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa27` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa270` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa271` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa272` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa273` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa274` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa275` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa276` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa277` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa278` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa279` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa28` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa280` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa281` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa282` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa283` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa284` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa285` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa286` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa287` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa288` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa289` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa29` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa290` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa291` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa292` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa293` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa294` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa295` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa296` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa297` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa298` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa299` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa3` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa30` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa300` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa301` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa302` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa303` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa304` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa305` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa306` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa307` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa308` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa309` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa31` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa310` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa311` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa312` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa313` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa314` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa315` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa316` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa317` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa318` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa319` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa32` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa320` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa321` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa322` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa323` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa324` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa325` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa326` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa327` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa328` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa329` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa33` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa330` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa331` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa332` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa333` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa334` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa335` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa336` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa337` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa338` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa339` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa34` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa340` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa341` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa342` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa343` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa344` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa345` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa346` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa347` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa348` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa349` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa35` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa350` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa351` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa352` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa353` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa354` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa355` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa356` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa357` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa358` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa359` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa36` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa360` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa361` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa362` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa363` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa364` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa365` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa366` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa367` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa368` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa369` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa37` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa370` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa371` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa372` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa373` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa374` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa375` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa376` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa377` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa378` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa379` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa38` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa380` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa381` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa382` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa383` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa384` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa385` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa386` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa387` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa388` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa389` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa39` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa390` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa391` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa392` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa393` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa394` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa395` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa396` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa397` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa398` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa399` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa40` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa400` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa401` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa402` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa403` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa404` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa405` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa406` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa407` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa408` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa409` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa41` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa410` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa411` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa412` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa413` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa414` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa415` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa416` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa417` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa418` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa419` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa42` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa420` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa421` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa422` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa423` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa424` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa425` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa426` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa427` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa428` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa429` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa43` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa430` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa431` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa432` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa433` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa434` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa435` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa436` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa437` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa438` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa439` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa44` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa440` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa441` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa442` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa443` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa444` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa445` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa446` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa447` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa448` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa449` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa45` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa450` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa451` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa452` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa453` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa454` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa455` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa456` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa457` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa458` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa459` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa46` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa460` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa461` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa462` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa463` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa464` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa465` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa466` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa467` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa468` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa469` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa47` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa470` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa471` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa472` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa473` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa474` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa475` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa476` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa477` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa478` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa479` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa48` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa480` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa481` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa482` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa483` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa484` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa485` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa486` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa487` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa488` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa489` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa49` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa490` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa491` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa492` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa493` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa494` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa495` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa496` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa497` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa498` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa499` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa5` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa50` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa500` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa501` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa502` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa503` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa504` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa505` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa506` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa507` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa508` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa509` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa51` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa510` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa511` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa512` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa513` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa514` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa515` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa516` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa517` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa518` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa519` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa52` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa520` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa521` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa522` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa523` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa524` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa525` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa526` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa527` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa528` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa529` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa53` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa530` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa531` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa532` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa533` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa534` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa535` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa536` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa537` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa538` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa539` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa54` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa540` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa541` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa542` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa543` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa544` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa545` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa546` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa547` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa548` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa549` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa55` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa550` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa56` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa57` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa58` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa59` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa6` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa60` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa61` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa62` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa63` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa64` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa65` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa66` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa67` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa68` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa69` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa7` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa70` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa71` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa72` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa73` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa74` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa75` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa76` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa77` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa78` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa79` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa8` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa80` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa81` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa82` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa83` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa84` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa85` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa86` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa87` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa88` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa89` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa9` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa90` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa91` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa92` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa93` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa94` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa95` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa96` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa97` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa98` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL,
  CONSTRAINT `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa99` FOREIGN KEY (`a`) REFERENCES `bug56143_1` (`a`) ON UPDATE SET NULL
) ENGINE=InnoDB;

create table A(id int not null primary key) engine=innodb;

create table B(id int not null auto_increment primary key, f1 int not null, foreign key(f1) references A(id) on delete cascade) engine=innodb;

create table C(id int not null auto_increment primary key, f1 int not null, foreign key(f1) references B(id) on delete cascade) engine=innodb;

insert into A values (1), (2);
