151 lines
4.8 KiB
SQL
151 lines
4.8 KiB
SQL
-- 113 迁移前置兼容修复。
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--
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-- 113 已经进入生产，文件必须保持字节不变。旧快照库中存在两类历史脏数据，
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-- 会让原版 113 在“加新约束/唯一索引”时失败：
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-- 1. sales_daily_facts 仍有旧约束不接受的渠道值；
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-- 2. cost_exceptions 同一范围的旧行会生成重复 scope_key。
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--
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-- 本文件不是迁移，不写 schema_migrations。它只做幂等兼容准备：
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-- - 113 已执行时立即跳过；
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-- - 清理旧库数据，让随后执行的原版 113 可以通过。
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--
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-- 由 deploy/ubuntu-deploy.sh 在数据库迁移前自动执行。
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DO $preflight$
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DECLARE
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v_has_113 BOOLEAN := FALSE;
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v_sales_has_mode BOOLEAN := FALSE;
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v_scope_duplicates BIGINT := 0;
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v_scope_missing BIGINT := 0;
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BEGIN
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IF to_regclass('public.schema_migrations') IS NOT NULL THEN
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EXECUTE $query$
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SELECT EXISTS (
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SELECT 1
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FROM public.schema_migrations migration
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WHERE to_jsonb(migration)->>'filename' = '113_finance_channel_cutover.sql'
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OR to_jsonb(migration)->>'name' = '113_finance_channel_cutover'
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)
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$query$ INTO v_has_113;
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END IF;
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IF v_has_113 THEN
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RAISE NOTICE '113 已执行，跳过前置兼容修复';
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RETURN;
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END IF;
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IF to_regclass('public.sales_daily_facts') IS NOT NULL THEN
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SELECT EXISTS (
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SELECT 1
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FROM pg_attribute
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WHERE attrelid = 'public.sales_daily_facts'::regclass
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AND attname = 'fulfillment_mode'
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AND NOT attisdropped
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) INTO v_sales_has_mode;
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IF v_sales_has_mode THEN
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EXECUTE $sql$
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ALTER TABLE public.sales_daily_facts
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DROP CONSTRAINT IF EXISTS chk_sales_daily_facts_fulfillment_mode
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$sql$;
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EXECUTE $sql$
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UPDATE public.sales_daily_facts
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SET fulfillment_mode = CASE
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WHEN fulfillment_mode = 'legacy_platform' THEN 'archived'
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ELSE 'unclassified'
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END
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WHERE fulfillment_mode NOT IN (
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'work_order', 'affiliate_dash', 'third_party_voucher',
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'manual', 'unclassified', 'archived'
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)
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$sql$;
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-- 迁移前临时使用新旧并集的约束；原版 113 会立即替换成最终约束。
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EXECUTE $sql$
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ALTER TABLE public.sales_daily_facts
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ADD CONSTRAINT chk_sales_daily_facts_fulfillment_mode
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CHECK (
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fulfillment_mode IN (
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'work_order', 'affiliate_dash', 'third_party_voucher',
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'manual', 'unclassified', 'archived'
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)
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)
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$sql$;
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RAISE NOTICE 'sales_daily_facts 历史渠道值已兼容归一';
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END IF;
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END IF;
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IF to_regclass('public.cost_exceptions') IS NOT NULL THEN
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EXECUTE $sql$
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ALTER TABLE public.cost_exceptions
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ADD COLUMN IF NOT EXISTS scope_key TEXT,
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ADD COLUMN IF NOT EXISTS item_count INTEGER NOT NULL DEFAULT 1,
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ADD COLUMN IF NOT EXISTS first_seen_at TIMESTAMPTZ,
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ADD COLUMN IF NOT EXISTS last_seen_at TIMESTAMPTZ
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$sql$;
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EXECUTE $sql$
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WITH duplicate_scope_keys AS (
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SELECT scope_key
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FROM public.cost_exceptions
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WHERE status <> 'resolved'
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AND NULLIF(BTRIM(scope_key), '') IS NOT NULL
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GROUP BY scope_key
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HAVING COUNT(*) > 1
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)
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UPDATE public.cost_exceptions ce
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SET scope_key =
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COALESCE(NULLIF(BTRIM(ce.reason), ''), 'legacy')
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|| '|'
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|| COALESCE(ce.order_item_id::text, ce.subject_id::text, ce.id::text)
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|| '|legacy:'
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|| ce.id,
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first_seen_at = COALESCE(ce.first_seen_at, ce.created_at),
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last_seen_at = COALESCE(ce.last_seen_at, ce.created_at)
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WHERE ce.scope_key IS NULL
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OR BTRIM(ce.scope_key) = ''
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OR ce.first_seen_at IS NULL
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OR ce.last_seen_at IS NULL
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OR (
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ce.status <> 'resolved'
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AND ce.scope_key IN (SELECT scope_key FROM duplicate_scope_keys)
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)
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$sql$;
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EXECUTE $sql$
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SELECT COUNT(*)
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FROM (
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SELECT scope_key
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FROM public.cost_exceptions
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WHERE status <> 'resolved'
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AND NULLIF(BTRIM(scope_key), '') IS NOT NULL
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GROUP BY scope_key
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HAVING COUNT(*) > 1
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) duplicate_scope_keys
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$sql$ INTO v_scope_duplicates;
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EXECUTE $sql$
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SELECT COUNT(*)
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FROM public.cost_exceptions
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WHERE scope_key IS NULL OR BTRIM(scope_key) = ''
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$sql$ INTO v_scope_missing;
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IF v_scope_duplicates > 0 THEN
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RAISE EXCEPTION
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'cost_exceptions 仍有 % 组重复 scope_key，113 无法创建唯一索引',
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v_scope_duplicates;
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END IF;
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IF v_scope_missing > 0 THEN
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RAISE EXCEPTION
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'cost_exceptions 仍有 % 行 scope_key 为空，113 的唯一索引前置数据不完整',
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v_scope_missing;
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END IF;
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RAISE NOTICE 'cost_exceptions 历史 scope_key 已保证唯一';
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END IF;
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END
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$preflight$;
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