41 lines
2.5 KiB
SQL
41 lines
2.5 KiB
SQL
-- Legacy single-table baseline. New deployments must also run
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-- IM-群消息按月分表SQL.sql; this table remains only for migration-time dual reads.
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CREATE TABLE IF NOT EXISTS im_group_messages (
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id BIGINT NOT NULL AUTO_INCREMENT,
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topic VARCHAR(64) NOT NULL COMMENT '群 Topic，如 grp_xxx',
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group_id BIGINT NOT NULL COMMENT '业务群 ID，便于分区、治理和统计',
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seqid BIGINT NOT NULL COMMENT '群内消息序号，由 Redis 原子发号',
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from_user BIGINT NOT NULL COMMENT '发送人用户 ID',
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client_msg_id VARCHAR(64) NULL COMMENT '客户端幂等消息 ID',
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msg_type VARCHAR(32) NOT NULL DEFAULT 'text' COMMENT 'text/image/file/audio/video/system 等',
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status VARCHAR(32) NOT NULL DEFAULT 'normal' COMMENT 'normal/recalled/deleted/blocked',
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content JSON NULL COMMENT '消息正文或 Drafty 内容',
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head JSON NULL COMMENT '消息头，包含 @、引用、客户端能力等',
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mentioned_user_ids JSON NULL COMMENT '@ 用户列表，便于提醒和检索',
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mention_all TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否 @ 全体',
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reply_seqid BIGINT NULL COMMENT '回复的群消息 seq',
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root_seqid BIGINT NULL COMMENT '线程或合并上下文根消息 seq',
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file_count INT NOT NULL DEFAULT 0 COMMENT '附件数量',
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content_size INT NOT NULL DEFAULT 0 COMMENT '正文 JSON 序列化后的字节数',
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has_risk TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否命中风控或内容安全',
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audit_status VARCHAR(32) NOT NULL DEFAULT 'pass' COMMENT 'pass/pending/reject',
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version INT NOT NULL DEFAULT 1 COMMENT '编辑版本',
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recalled_at DATETIME(3) NULL,
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recalled_by BIGINT NULL,
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deleted_at DATETIME(3) NULL,
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expires_at DATETIME(3) NULL COMMENT '可选保留期，便于过期归档或清理',
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created_at DATETIME(3) NOT NULL,
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updated_at DATETIME(3) NOT NULL,
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PRIMARY KEY (id),
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UNIQUE KEY uk_im_group_messages_group_seq (group_id, seqid),
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UNIQUE KEY uk_im_group_messages_topic_seq (topic, seqid),
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UNIQUE KEY uk_im_group_messages_topic_sender_client_mid (topic, from_user, client_msg_id),
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KEY idx_im_group_messages_group_created (group_id, created_at),
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KEY idx_im_group_messages_group_status_seq (group_id, status, seqid),
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KEY idx_im_group_messages_topic_created (topic, created_at),
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KEY idx_im_group_messages_topic_from_seq (topic, from_user, seqid),
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KEY idx_im_group_messages_audit (audit_status, created_at),
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KEY idx_im_group_messages_expires (expires_at)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
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