后端统一时区为 UTC

resources/sql/001_create_users_table.sql

@@ -11,8 +11,8 @@ CREATE TABLE IF NOT EXISTS users (
     role VARCHAR(20) DEFAULT 'USER' NOT NULL,
     is_active BOOLEAN DEFAULT TRUE NOT NULL,
     is_superuser BOOLEAN DEFAULT FALSE NOT NULL,
-    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
-    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
     
     CONSTRAINT users_role_check CHECK (role IN ('ADMIN', 'OPERATOR', 'USER', 'VIEWER'))
 );

resources/sql/002_create_audit_logs_table.sql

@@ -17,7 +17,7 @@ CREATE TABLE IF NOT EXISTS audit_logs (
     request_data JSONB,
     response_status INTEGER,
     error_message TEXT,
-    timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL
+    timestamp TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL
 );
 
 -- 创建索引以提高查询性能

resources/sql/003_normalize_timestamp_columns.sql

@@ -0,0 +1,63 @@
+-- ============================================
+-- TJWater Server 时区统一迁移脚本
+-- 将历史无时区时间列升级为 TIMESTAMP WITH TIME ZONE
+-- 约定：历史无时区值按 UTC 解释
+-- ============================================
+
+DO $$
+BEGIN
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'public'
+          AND table_name = 'users'
+          AND column_name = 'created_at'
+          AND data_type = 'timestamp without time zone'
+    ) THEN
+        EXECUTE 'ALTER TABLE public.users
+                 ALTER COLUMN created_at TYPE TIMESTAMP WITH TIME ZONE
+                 USING created_at AT TIME ZONE ''UTC''';
+    END IF;
+
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'public'
+          AND table_name = 'users'
+          AND column_name = 'updated_at'
+          AND data_type = 'timestamp without time zone'
+    ) THEN
+        EXECUTE 'ALTER TABLE public.users
+                 ALTER COLUMN updated_at TYPE TIMESTAMP WITH TIME ZONE
+                 USING updated_at AT TIME ZONE ''UTC''';
+    END IF;
+
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'public'
+          AND table_name = 'audit_logs'
+          AND column_name = 'timestamp'
+          AND data_type = 'timestamp without time zone'
+    ) THEN
+        EXECUTE 'ALTER TABLE public.audit_logs
+                 ALTER COLUMN timestamp TYPE TIMESTAMP WITH TIME ZONE
+                 USING "timestamp" AT TIME ZONE ''UTC''';
+    END IF;
+
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'public'
+          AND table_name = 'scheme_list'
+          AND column_name = 'scheme_start_time'
+          AND data_type IN ('character varying', 'text')
+    ) THEN
+        EXECUTE 'ALTER TABLE public.scheme_list
+                 ALTER COLUMN scheme_start_time TYPE TIMESTAMP WITH TIME ZONE
+                 USING CASE
+                     WHEN scheme_start_time ~ ''(Z|[+-][0-9]{2}:[0-9]{2})$'' THEN scheme_start_time::timestamptz
+                     ELSE scheme_start_time::timestamp AT TIME ZONE ''UTC''
+                 END';
+    END IF;
+END $$;

resources/sql/create/40.scheme_list.sql

@@ -9,6 +9,6 @@ create table scheme_list (
     scheme_type varchar(32) not null,
     username varchar(32) not null REFERENCES "users"(username) ON UPDATE CASCADE ON DELETE RESTRICT,
     create_time TIMESTAMP WITH TIME ZONE not null DEFAULT date_trunc('minute', CURRENT_TIMESTAMP),
-    scheme_start_time varchar(50) not null,
+    scheme_start_time TIMESTAMP WITH TIME ZONE not null,
     scheme_detail JSON
-)
+)