feat(deploy): production deployment setup and fixes

- Debian-based api image (bookworm-slim), docker/debian mirrors, prisma binaryTargets for openssl 3.0 - nginx: admin SPA under /admin, TLS via acme.sh (ZeroSSL) + auto-renewal cron, http->https redirect - prisma: add origin_goods.delisted migration, sync missing schema (good_image/tag_font_color/good_tags), fix users.createdAt Timestamptz - api: CORS wildcard reflection, helmet CORP cross-origin, price backfill in persistProductDetail, categoryIcon ancestor fallback, mediaByColor per-color gallery in public goods detail - admin: /admin base path (vite + router) - import-data.mjs: udt_name casting, serial sequence advance fix
2026-08-26 14:23:09 +08:00
parent be0b90e68f
commit 6c61a4e871
982 changed files with 74156 additions and 179393 deletions
@@ -1,44 +0,0 @@
---
-title: Create Composite Indexes for Multi-Column Queries
-impact: HIGH
-impactDescription: 5-10x faster multi-column queries
-tags: indexes, composite-index, multi-column, query-optimization
---
-
-## Create Composite Indexes for Multi-Column Queries
-
-When queries filter on multiple columns, a composite index is more efficient than separate single-column indexes.
-
-**Incorrect (separate indexes require bitmap scan):**
-
-```sql
-- Two separate indexes
-create index orders_status_idx on orders (status);
-create index orders_created_idx on orders (created_at);
-
-- Query must combine both indexes (slower)
-select * from orders where status = 'pending' and created_at > '2024-01-01';
-```
-
-**Correct (composite index):**
-
-```sql
-- Single composite index (leftmost column first for equality checks)
-create index orders_status_created_idx on orders (status, created_at);
-
-- Query uses one efficient index scan
-select * from orders where status = 'pending' and created_at > '2024-01-01';
-```
-
-**Column order matters** - place equality columns first, range columns last:
-
-```sql
-- Good: status (=) before created_at (>)
-create index idx on orders (status, created_at);
-
-- Works for: WHERE status = 'pending'
-- Works for: WHERE status = 'pending' AND created_at > '2024-01-01'
-- Does NOT work for: WHERE created_at > '2024-01-01' (leftmost prefix rule)
-```
-
-Reference: [Multicolumn Indexes](https://www.postgresql.org/docs/current/indexes-multicolumn.html)