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