103 lines
4.8 KiB
SQL
103 lines
4.8 KiB
SQL
CREATE TABLE IF NOT EXISTS chat_session (
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id BIGINT AUTO_INCREMENT PRIMARY KEY,
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user_id BIGINT NOT NULL,
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session_uuid CHAR(36) NOT NULL, -- 可用于对外展示的ID（UUID）
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end_time DATETIME NULL,
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status VARCHAR(16) NOT NULL DEFAULT 'OPEN', -- OPEN/CLOSED/ABANDONED
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last_turn_id BIGINT NULL, -- 指向 chat_turn.id
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ext_context JSON NULL, -- 业务上下文
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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UNIQUE KEY uk_session_uuid (session_uuid),
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KEY idx_user_time (user_id, created_at),
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KEY idx_status_time (status, created_at),
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KEY idx_last_turn (last_turn_id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
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CREATE TABLE IF NOT EXISTS chat_turn (
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id BIGINT AUTO_INCREMENT,
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session_id BIGINT NOT NULL, -- 关联 chat_session.id
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turn_no INT NOT NULL, -- 会话内轮次序号（1,2,3...）
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user_id BIGINT NOT NULL,
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user_query TEXT NOT NULL, -- 原始用户问句
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intent VARCHAR(64) NULL, -- METRIC_QUERY/METRIC_EXPLAIN 等
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ast_json JSON NULL, -- 解析出来的 AST
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generated_sql MEDIUMTEXT NULL, -- 生成的最终SQL
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sql_status VARCHAR(32) NULL, -- SUCCESS/FAILED/SKIPPED
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error_msg TEXT NULL, -- SQL生成/执行错误信息
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main_metric_ids JSON NULL, -- 本轮涉及的指标ID列表
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created_metric_ids JSON NULL, -- 本轮新建指标ID列表
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end_time DATETIME NULL,
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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-- 主键改为联合主键，必须包含 created_at
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PRIMARY KEY (id, created_at),
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KEY idx_session_turn (session_id, turn_no),
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KEY idx_session_time (session_id, created_at),
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KEY idx_intent_time (intent, created_at),
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KEY idx_user_time (user_id, created_at)
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)
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ENGINE=InnoDB
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DEFAULT CHARSET=utf8mb4
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PARTITION BY RANGE COLUMNS(created_at) (
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-- 历史数据分区（根据实际需求调整）
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PARTITION p202511 VALUES LESS THAN ('2025-12-01'),
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PARTITION p202512 VALUES LESS THAN ('2026-01-01'),
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-- 2026年按月分区
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PARTITION p202601 VALUES LESS THAN ('2026-02-01'),
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PARTITION p202602 VALUES LESS THAN ('2026-03-01'),
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PARTITION p202603 VALUES LESS THAN ('2026-04-01'),
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PARTITION p202604 VALUES LESS THAN ('2026-05-01'),
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PARTITION p202605 VALUES LESS THAN ('2026-06-01'),
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PARTITION p202606 VALUES LESS THAN ('2026-07-01'),
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-- ... 可以预建几个月 ...
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-- 兜底分区，存放未来的数据，防止插入报错
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PARTITION p_future VALUES LESS THAN (MAXVALUE)
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);
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CREATE TABLE IF NOT EXISTS chat_turn_retrieval (
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id BIGINT AUTO_INCREMENT,
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turn_id BIGINT NOT NULL, -- 关联 qa_turn.id
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item_type VARCHAR(32) NOT NULL, -- METRIC/SNIPPET/CHAT
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item_id VARCHAR(128) NOT NULL, -- metric_id/snippet_id/table_name 等
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item_extra JSON NULL, -- 附加信息，如字段名等
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similarity_score DECIMAL(10,6) NULL, -- 相似度
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rank_no INT NULL, -- 检索排名
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used_in_reasoning TINYINT(1) NOT NULL DEFAULT 0, -- 是否参与推理
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used_in_sql TINYINT(1) NOT NULL DEFAULT 0, -- 是否影响最终SQL
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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-- 主键改为联合主键，必须包含 created_at
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PRIMARY KEY (id, created_at),
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KEY idx_turn (turn_id),
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KEY idx_turn_type (turn_id, item_type),
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KEY idx_item (item_type, item_id)
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)
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ENGINE=InnoDB
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DEFAULT CHARSET=utf8mb4
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PARTITION BY RANGE COLUMNS(created_at) (
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-- 历史数据分区（根据实际需求调整）
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PARTITION p202511 VALUES LESS THAN ('2025-12-01'),
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PARTITION p202512 VALUES LESS THAN ('2026-01-01'),
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-- 2026年按月分区
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PARTITION p202601 VALUES LESS THAN ('2026-02-01'),
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PARTITION p202602 VALUES LESS THAN ('2026-03-01'),
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PARTITION p202603 VALUES LESS THAN ('2026-04-01'),
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PARTITION p202604 VALUES LESS THAN ('2026-05-01'),
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PARTITION p202605 VALUES LESS THAN ('2026-06-01'),
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PARTITION p202606 VALUES LESS THAN ('2026-07-01'),
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-- ... 可以预建几个月 ...
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-- 兜底分区，存放未来的数据，防止插入报错
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PARTITION p_future VALUES LESS THAN (MAXVALUE)
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); |