85ba15c564
- Go + Gin + GORM + PostgreSQL backend - RESTful API for material management - Docker deployment support - Database partitioning for billion-scale data - API documentation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
27 lines
1.0 KiB
SQL
27 lines
1.0 KiB
SQL
-- ============================================
|
||
-- Migration: 003_add_indexes.sql
|
||
-- Purpose: 添加性能优化索引
|
||
-- ============================================
|
||
|
||
-- 1. 启用 pg_trgm 扩展 (支持模糊搜索索引)
|
||
CREATE EXTENSION IF NOT EXISTS pg_trgm;
|
||
|
||
-- 2. 材质名称模糊搜索索引 (GIN 索引，支持 ILIKE '%keyword%')
|
||
CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_materials_name_trgm
|
||
ON materials USING gin (name gin_trgm_ops);
|
||
|
||
-- 3. 材质创建时间索引 (用于排序)
|
||
CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_materials_created_at
|
||
ON materials(created_at DESC);
|
||
|
||
-- 4. 材质更新时间索引
|
||
CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_materials_updated_at
|
||
ON materials(updated_at DESC);
|
||
|
||
-- 注意: 如果使用了分区表 (002_partition_bindings.sql)，
|
||
-- 以下索引已在分区迁移中创建，可跳过
|
||
|
||
-- 5. binding 表 group_id + material_id 复合索引 (优化批量查询)
|
||
-- CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_bindings_group_material
|
||
-- ON material_bindings(group_id, material_id);
|