Initial commit: GovAI 政务AI平台

server/migrations/000004_usage_logs.up.sql

@@ -0,0 +1,54 @@
+-- 000004: 使用记录表
+
+-- 使用明细表
+CREATE TABLE app_usage_logs (
+    id                UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    app_id            UUID NOT NULL REFERENCES applications(id),
+    user_id           UUID NOT NULL REFERENCES users(id),
+    dept_id           UUID REFERENCES departments(id),
+
+    conversation_id   VARCHAR(255),
+    message_count     INTEGER NOT NULL DEFAULT 1,
+
+    prompt_tokens     INTEGER NOT NULL DEFAULT 0,
+    completion_tokens INTEGER NOT NULL DEFAULT 0,
+    total_tokens      INTEGER NOT NULL DEFAULT 0,
+    model_name        VARCHAR(100),
+    estimated_cost    DECIMAL(10, 6) NOT NULL DEFAULT 0,
+
+    duration_ms       INTEGER,
+    is_successful     BOOLEAN NOT NULL DEFAULT true,
+    error_message     TEXT,
+    client_type       VARCHAR(20) DEFAULT 'web'
+                      CHECK (client_type IN ('web', 'wechat', 'dingtalk', 'feishu', 'api')),
+
+    created_at        TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_usage_app ON app_usage_logs(app_id);
+CREATE INDEX idx_usage_user ON app_usage_logs(user_id);
+CREATE INDEX idx_usage_dept ON app_usage_logs(dept_id);
+CREATE INDEX idx_usage_created ON app_usage_logs(created_at);
+CREATE INDEX idx_usage_model ON app_usage_logs(model_name);
+
+-- 日汇总表（定时任务聚合）
+CREATE TABLE app_usage_daily (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    date            DATE NOT NULL,
+    app_id          UUID NOT NULL REFERENCES applications(id),
+    dept_id         UUID REFERENCES departments(id),
+
+    total_requests  BIGINT NOT NULL DEFAULT 0,
+    unique_users    INTEGER NOT NULL DEFAULT 0,
+    total_tokens    BIGINT NOT NULL DEFAULT 0,
+    total_cost      DECIMAL(12, 6) NOT NULL DEFAULT 0,
+    avg_duration_ms INTEGER NOT NULL DEFAULT 0,
+    error_count     INTEGER NOT NULL DEFAULT 0,
+
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    UNIQUE(date, app_id, dept_id)
+);
+
+CREATE INDEX idx_daily_date ON app_usage_daily(date);
+CREATE INDEX idx_daily_app ON app_usage_daily(app_id);
+CREATE INDEX idx_daily_dept ON app_usage_daily(dept_id);