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fix(ops): harden cold-start schedule recovery

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2026-05-05 22:14:54 +08:00
parent 10cd9fc025
commit 894174da5b
13 changed files with 1073 additions and 43 deletions
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47
apps/api/migrations/embedding_bge_m3_1024.sql
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@@ -6,8 +6,9 @@
-- bge-m3 產生 1024 維向量，現有 schema vector(768) 不相容，INSERT 會直接失敗
--
-- 影響範圍：
-- 1. rag_chunks.embedding vector(768) → vector(1024)
-- 2. playbook_embeddings.embedding vector(768) → vector(1024)
-- 1. knowledge_entries.embedding vector(768) → vector(1024)
-- 2. rag_chunks.embedding vector(768) → vector(1024)
-- 3. playbook_embeddings.embedding vector(768) → vector(1024)
--
-- 遷移策略：清空現有向量資料，切換維度後由 re-embed script 重新嵌入
-- 現有向量資料若要保留，需先 dump 用 nomic 格式備份（舊維度無法轉換）
@@ -21,7 +22,24 @@
BEGIN;
-- 1. rag_chunks：清空向量資料，變更欄位維度
-- 1. knowledge_entries：備份舊向量並清空，變更欄位維度
CREATE TABLE IF NOT EXISTS knowledge_entries_embedding_backup_20260505 AS
SELECT
id,
embedding::text AS embedding_768,
NOW() AS backed_up_at
FROM knowledge_entries
WHERE embedding IS NOT NULL;
ALTER TABLE knowledge_entries
ALTER COLUMN embedding TYPE vector(1024)
USING NULL; -- 清空現有 768 維向量（維度不可轉換）
COMMENT ON COLUMN knowledge_entries.embedding IS
'bge-m3:latest 1024 維向量 — 遷移自 nomic-embed-text 768 維 (2026-05-05 ADR-110 follow-up)';
-- 2. rag_chunks：清空向量資料，變更欄位維度
-- ivfflat index 必須先 DROP 才能 ALTER COLUMN
DROP INDEX IF EXISTS idx_rag_chunks_embedding;
@@ -39,7 +57,7 @@ COMMENT ON COLUMN rag_chunks.embedding IS
'bge-m3:latest 1024 維向量 — 遷移自 nomic-embed-text 768 維 (2026-05-04 ADR-110)';
-- 2. playbook_embeddings：清空向量資料，變更欄位維度
-- 3. playbook_embeddings：清空向量資料，變更欄位維度
DROP INDEX IF EXISTS ix_playbook_embeddings_vec;
ALTER TABLE playbook_embeddings
@@ -61,9 +79,15 @@ COMMENT ON TABLE playbook_embeddings IS
-- 3. 驗證遷移結果
DO $$
DECLARE
v_km_dim integer;
v_rag_dim integer;
v_pb_dim integer;
BEGIN
SELECT atttypmod INTO v_km_dim
FROM pg_attribute
JOIN pg_class ON attrelid = pg_class.oid
WHERE relname = 'knowledge_entries' AND attname = 'embedding';
SELECT atttypmod INTO v_rag_dim
FROM pg_attribute
JOIN pg_class ON attrelid = pg_class.oid
@@ -74,15 +98,18 @@ BEGIN
JOIN pg_class ON attrelid = pg_class.oid
WHERE relname = 'playbook_embeddings' AND attname = 'embedding';
-- atttypmod for vector(1024) = 1024 + 1 = 1025
IF v_rag_dim != 1025 THEN
RAISE EXCEPTION 'rag_chunks.embedding 維度驗證失敗：expected 1025, got %', v_rag_dim;
-- pgvector atttypmod stores the configured dimension.
IF v_km_dim != 1024 THEN
RAISE EXCEPTION 'knowledge_entries.embedding 維度驗證失敗：expected 1024, got %', v_km_dim;
END IF;
IF v_pb_dim != 1025 THEN
RAISE EXCEPTION 'playbook_embeddings.embedding 維度驗證失敗：expected 1025, got %', v_pb_dim;
IF v_rag_dim != 1024 THEN
RAISE EXCEPTION 'rag_chunks.embedding 維度驗證失敗：expected 1024, got %', v_rag_dim;
END IF;
IF v_pb_dim != 1024 THEN
RAISE EXCEPTION 'playbook_embeddings.embedding 維度驗證失敗：expected 1024, got %', v_pb_dim;
END IF;
RAISE NOTICE '✅ embedding 遷移驗證通過：rag_chunks 和 playbook_embeddings 均為 vector(1024)';
RAISE NOTICE '✅ embedding 遷移驗證通過：knowledge_entries、rag_chunks、playbook_embeddings 均為 vector(1024)';
END $$;
COMMIT;