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"CREATE TABLE `newsletter_queue_link` (\n  `queue_link_id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Queue Link ID',\n  `queue_id` int(10) unsigned NOT NULL DEFAULT 0 COMMENT 'Queue ID',\n  `subscriber_id` int(10) unsigned NOT NULL DEFAULT 0 COMMENT 'Subscriber ID',\n  `letter_sent_at` timestamp NULL DEFAULT NULL COMMENT 'Letter Sent At',\n  PRIMARY KEY (`queue_link_id`),\n  KEY `NEWSLETTER_QUEUE_LINK_SUBSCRIBER_ID` (`subscriber_id`),\n  KEY `NEWSLETTER_QUEUE_LINK_QUEUE_ID_LETTER_SENT_AT` (`queue_id`,`letter_sent_at`),\n  CONSTRAINT `NEWSLETTER_QUEUE_LINK_QUEUE_ID_NEWSLETTER_QUEUE_QUEUE_ID` FOREIGN KEY (`queue_id`) REFERENCES `newsletter_queue` (`queue_id`) ON DELETE CASCADE,\n  CONSTRAINT `NLTTR_QUEUE_LNK_SUBSCRIBER_ID_NLTTR_SUBSCRIBER_SUBSCRIBER_ID` FOREIGN KEY (`subscriber_id`) REFERENCES `newsletter_subscriber` (`subscriber_id`) ON DELETE CASCADE\n) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci COMMENT='Newsletter Queue Link'"