33 lines
3.2 KiB
SQL
33 lines
3.2 KiB
SQL
-- 业务数据库的初始Outbox表，保留原示例表名以兼容，不属于平台迁移，无外键或级联删除。
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CREATE TABLE sender_outbox (
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namespace_id CHAR(32) CHARACTER SET ascii COLLATE ascii_bin NOT NULL COMMENT '固定目标命名空间，重启及换凭据不得改变',
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queue_id CHAR(32) CHARACTER SET ascii COLLATE ascii_bin NOT NULL COMMENT '固定目标队列，发送前核对当前授权及命名空间',
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operation_id CHAR(32) CHARACTER SET ascii COLLATE ascii_bin NOT NULL COMMENT '业务操作标识，同命名空间内唯一，调用方持久化后复用',
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idempotency_key VARCHAR(128) CHARACTER SET ascii COLLATE ascii_bin NOT NULL COMMENT '冻结平台提交键，由业务操作标识派生，禁止换键补发',
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request_json MEDIUMTEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL COMMENT '冻结任务提交正文，保留精确数字，不存认证凭据',
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request_digest BINARY(32) NOT NULL COMMENT '冻结正文SHA256，防止同身份不同内容，非平台摘要算法',
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state VARCHAR(16) CHARACTER SET ascii COLLATE ascii_bin NOT NULL COMMENT 'PENDING待发，SENDING领取中，ACCEPTED已受理，REVIEW需核查',
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send_count INT UNSIGNED NOT NULL COMMENT '领取次数，包含领取后崩溃的次数，最多100',
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lease_epoch BIGINT UNSIGNED NOT NULL COMMENT '领取代次递增，旧发送器不能覆盖新代次结果',
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wake_at DATETIME(6) NULL COMMENT '待发下次时间或发送租约期限，终结后为空，UTC微秒',
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send_deadline_at DATETIME(6) NOT NULL COMMENT '首次入库24小时后的发送截止，短于平台幂等保留窗口',
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last_code VARCHAR(32) CHARACTER SET ascii COLLATE ascii_bin NOT NULL COMMENT '最近稳定分类，不保存服务端错误正文或秘密',
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task_id CHAR(32) CHARACTER SET ascii COLLATE ascii_bin NULL COMMENT '已确认的平台任务标识，只在ACCEPTED非空',
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receipt_json MEDIUMTEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NULL COMMENT '原受理回执，仅ACCEPTED非空，不代表当前执行结果',
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created_at DATETIME(6) NOT NULL COMMENT '业务事务首次创建命令UTC时间，微秒精度',
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updated_at DATETIME(6) NOT NULL COMMENT '本地状态最近变化UTC时间，微秒精度',
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PRIMARY KEY (namespace_id,operation_id),
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UNIQUE KEY uq_sender_identity(namespace_id,idempotency_key),
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KEY ix_sender_due(namespace_id,queue_id,wake_at,operation_id),
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CONSTRAINT ck_sender_document CHECK (JSON_VALID(request_json)),
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CONSTRAINT ck_sender_receipt CHECK (receipt_json IS NULL OR JSON_VALID(receipt_json)),
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CONSTRAINT ck_sender_count CHECK (send_count<=100 AND lease_epoch=send_count),
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CONSTRAINT ck_sender_state CHECK (
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(state IN ('PENDING','SENDING') AND wake_at IS NOT NULL AND task_id IS NULL AND receipt_json IS NULL)
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OR (state='REVIEW' AND wake_at IS NULL AND task_id IS NULL AND receipt_json IS NULL)
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OR (state='ACCEPTED' AND wake_at IS NULL AND task_id IS NOT NULL AND receipt_json IS NOT NULL)
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),
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CONSTRAINT ck_sender_lease CHECK (state<>'SENDING' OR lease_epoch>0),
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CONSTRAINT ck_sender_deadline CHECK (send_deadline_at>created_at AND send_deadline_at<=TIMESTAMPADD(HOUR,24,created_at))
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) ENGINE=InnoDB COMMENT='业务事务Outbox，持久化原请求与有限重发状态，不承担业务恰好一次';
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