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
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---
-title: Use Partial Indexes for Filtered Queries
-impact: HIGH
-impactDescription: 5-20x smaller indexes, faster writes and queries
-tags: indexes, partial-index, query-optimization, storage
---
-
-## Use Partial Indexes for Filtered Queries
-
-Partial indexes only include rows matching a WHERE condition, making them smaller and faster when queries consistently filter on the same condition.
-
-**Incorrect (full index includes irrelevant rows):**
-
-```sql
-- Index includes all rows, even soft-deleted ones
-create index users_email_idx on users (email);
-
-- Query always filters active users
-select * from users where email = 'user@example.com' and deleted_at is null;
-```
-
-**Correct (partial index matches query filter):**
-
-```sql
-- Index only includes active users
-create index users_active_email_idx on users (email)
-where deleted_at is null;
-
-- Query uses the smaller, faster index
-select * from users where email = 'user@example.com' and deleted_at is null;
-```
-
-Common use cases for partial indexes:
-
-```sql
-- Only pending orders (status rarely changes once completed)
-create index orders_pending_idx on orders (created_at)
-where status = 'pending';
-
-- Only non-null values
-create index products_sku_idx on products (sku)
-where sku is not null;
-```
-
-Reference: [Partial Indexes](https://www.postgresql.org/docs/current/indexes-partial.html)