Instant GraphRAG over any Postgres database
Details
- External ID
- 48824102
- Source
- HN
- Company
- —
- Product
- Instant GraphRAG over any Postgres database
- Website domain
- polygres.com
- Launched
- July 7, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.1081242532855436
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Enrichment
- Theme
- gpu compute and acceleration tools
- Vertical
- Horizontal
- Function
- Data infrastructure
- Audience
- Developer
- AI stance
- AI feature
- Project type
- Commercial product
- Normalized one-liner
- graph rag retrieval for postgres databases
- Manually corrected
- False
Could you build this?
Partial While an API wrapper querying Postgres and generating embeddings is simple, building automated graph construction from relational schemas alongside high-performance hybrid vector-graph indexing requires advanced database systems design.
What it would actually take: A production version requires an automated schema-to-knowledge-graph pipeline (extracting foreign keys and semantic relationships), vector generation, and a graph query engine (like Apache AGE or pgvector integrated with custom graph traversal queries in Postgres). The hard part is efficiently maintaining real-time sync with underlying Postgres change streams (logical replication via WAL) and orchestrating fast hybrid retrieval without introducing severe query latency.
Discussion
4 comments analyzed.
Competitors mentioned: Qdrant, Pinecone, Neo4j, pgvector
Concerns raised: pgvector performance issues at scale, Data sync complexity across multiple stores, Stale index problems, Memory requirements during graph build phase
Feature requests: Lower memory usage during graph construction, Clarify expected query patterns and APIs for graph/vector retrieval
Competitors
Other products that read as similar to this one — 257 launches clear the similarity bar, closest 8 shown.
Attention rank: #227 of 258 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 251 days after the earliest competitor.
- justPostgres · github · 2026-09-09 · 46 upvotes · similarity 0.64
- Pgsemantic · hn · 2026-03-25 · 18 upvotes · similarity 0.52
- Pg_sorted_heap–Physically sorted PostgreSQL with builtin vector search · hn · 2026-03-06 · 10 upvotes · similarity 0.51
- LaminarDB · hn · 2026-02-18 · 6 upvotes · similarity 0.51
- pg_grpc · hn · 2026-04-13 · 7 upvotes · similarity 0.50
- Pglite-oxide · hn · 2026-04-27 · 5 upvotes · similarity 0.49
- PostgreSQL MCP Server with 135 tools for various purpose · hn · 2026-06-19 · 6 upvotes · similarity 0.49
- UnisonDB · hn · 2025-11-15 · 15 upvotes · similarity 0.48
Other launches for this product
- No other launches for this product.
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