68 lines
2.1 KiB
SQL
68 lines
2.1 KiB
SQL
-- ============================================================
|
||
-- EKB Schema 索引创建脚本
|
||
-- 执行时机：prisma migrate 之后手动执行
|
||
-- 参考文档：docs/02-通用能力层/03-RAG引擎/04-数据模型设计.md
|
||
-- ============================================================
|
||
|
||
-- 1. 确保 pgvector 扩展已启用
|
||
CREATE EXTENSION IF NOT EXISTS vector;
|
||
|
||
-- 2. 确保 pg_bigm 扩展已启用（中文关键词检索）
|
||
CREATE EXTENSION IF NOT EXISTS pg_bigm;
|
||
|
||
-- ===== MVP 阶段必须创建 =====
|
||
|
||
-- 3. HNSW 向量索引（语义检索核心）
|
||
-- 参数说明：m=16 每层最大连接数，ef_construction=64 构建时搜索范围
|
||
CREATE INDEX IF NOT EXISTS idx_ekb_chunk_embedding
|
||
ON "ekb_schema"."ekb_chunk"
|
||
USING hnsw (embedding vector_cosine_ops)
|
||
WITH (m = 16, ef_construction = 64);
|
||
|
||
-- ===== Phase 2 阶段使用（可预创建）=====
|
||
|
||
-- 4. pg_bigm 中文关键词索引
|
||
CREATE INDEX IF NOT EXISTS idx_ekb_chunk_content_bigm
|
||
ON "ekb_schema"."ekb_chunk"
|
||
USING gin (content gin_bigm_ops);
|
||
|
||
-- 5. 文档摘要关键词索引
|
||
CREATE INDEX IF NOT EXISTS idx_ekb_doc_summary_bigm
|
||
ON "ekb_schema"."ekb_document"
|
||
USING gin (summary gin_bigm_ops);
|
||
|
||
-- 6. 全文内容关键词索引
|
||
CREATE INDEX IF NOT EXISTS idx_ekb_doc_text_bigm
|
||
ON "ekb_schema"."ekb_document"
|
||
USING gin (extracted_text gin_bigm_ops);
|
||
|
||
-- ===== Phase 3 阶段使用（可预创建）=====
|
||
|
||
-- 7. JSONB GIN 索引（metadata 查询加速）
|
||
CREATE INDEX IF NOT EXISTS idx_ekb_doc_metadata_gin
|
||
ON "ekb_schema"."ekb_document"
|
||
USING gin (metadata jsonb_path_ops);
|
||
|
||
-- 8. JSONB GIN 索引（structuredData 查询加速）
|
||
CREATE INDEX IF NOT EXISTS idx_ekb_doc_structured_gin
|
||
ON "ekb_schema"."ekb_document"
|
||
USING gin (structured_data jsonb_path_ops);
|
||
|
||
-- 9. 标签数组索引
|
||
CREATE INDEX IF NOT EXISTS idx_ekb_doc_tags_gin
|
||
ON "ekb_schema"."ekb_document"
|
||
USING gin (tags);
|
||
|
||
-- 10. 切片元数据索引
|
||
CREATE INDEX IF NOT EXISTS idx_ekb_chunk_metadata_gin
|
||
ON "ekb_schema"."ekb_chunk"
|
||
USING gin (metadata jsonb_path_ops);
|
||
|
||
-- ===== 验证索引创建 =====
|
||
-- SELECT indexname, indexdef FROM pg_indexes WHERE schemaname = 'ekb_schema';
|
||
|
||
|
||
|
||
|
||
|