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58 lines
1.5 KiB
58 lines
1.5 KiB
USE provisioning;
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SET autocommit=0;
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CREATE TABLE `autoprov_firmwares_data` (
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`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
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fw_id int(11) unsigned NOT NULL,
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`data` longblob NOT NULL,
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PRIMARY KEY (`id`),
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KEY `afd_fw_id_idx` (`fw_id`),
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CONSTRAINT `fk_fw_idx` FOREIGN KEY (`fw_id`) REFERENCES `autoprov_firmwares` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
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) ENGINE=InnoDB;
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DELIMITER ;;
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CREATE PROCEDURE split_autoprov_firmware_data()
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BEGIN
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DECLARE n_fw_id, chunk_size, off_set int;
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DECLARE chunk longblob;
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DECLARE done int DEFAULT FALSE;
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DECLARE x CURSOR FOR SELECT id FROM autoprov_firmwares ORDER BY id ASC;
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DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
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SET chunk_size = 10485760;
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SET off_set = 1;
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OPEN x;
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x_main: LOOP
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FETCH x INTO n_fw_id;
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IF done THEN
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LEAVE x_main;
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END IF;
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SET off_set = 1;
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x_chunk: LOOP
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SELECT substr(data, off_set, chunk_size) INTO chunk
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FROM autoprov_firmwares
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WHERE id = n_fw_id;
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IF LENGTH(chunk) > 0 THEN
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INSERT INTO autoprov_firmwares_data (fw_id, data)
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VALUES (n_fw_id, chunk);
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SET off_set = off_set+chunk_size;
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ELSE
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LEAVE x_chunk;
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END IF;
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END LOOP;
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END LOOP;
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CLOSE x;
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END;;
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DELIMITER ;
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CALL split_autoprov_firmware_data;
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DROP PROCEDURE split_autoprov_firmware_data;
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ALTER TABLE autoprov_firmwares DROP data;
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COMMIT;
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