update sql

data/upgrade/v4.0.0/v4.0.0.sql

@@ -381,8 +381,7 @@ CREATE TABLE IF NOT EXISTS `t_documentary_reply`  (
 `viewed_user_ids` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
 `notice_user_ids` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
 PRIMARY KEY (`reply_id`, `documentary_number`) USING BTREE,
-INDEX `documentary_number`(`documentary_number`) USING BTREE,
-CONSTRAINT `t_documentary_reply_ibfk_1` FOREIGN KEY (`documentary_number`) REFERENCES `t_documentary` (`documentary_number`) ON DELETE CASCADE ON UPDATE CASCADE
+INDEX `documentary_number`(`documentary_number`) USING BTREE
 ) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;
 
 -- ----------------------------