text: CREATE TABLE b_a_c002_approval_for_all_event (
    	pk_id bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键id',
    	block_height bigint(20) NOT NULL COMMENT '交易所在块高',
  	_contract_address varchar(255) NOT NULL,
  	_owner varchar(255) NOT NULL,
  	_operator varchar(255) NOT NULL,
  	_approved varchar(8) NOT NULL,
  	KEY `_owner` (`_owner`),
    	`updatetime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
   	PRIMARY KEY (pk_id)
  ) COMMENT='b_a_c002_approval_for_all_event' ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;