@idriszade/store-pgvector

Store adapter for vector similarity search via pgvector and Drizzle ORM. Ships a pgvectorColumn(dimension) Drizzle custom-type helper and supports cosine, l2, and inner_product distances with hnsw or ivfflat indexes.

Install

pnpm add @idriszade/store-pgvector

Postgres server-side requirement: CREATE EXTENSION IF NOT EXISTS vector;

Usage

import { createPgvectorStore } from '@idriszade/store-pgvector';
import { z } from 'zod';

const store = createPgvectorStore({
  connectionString: process.env.PG_CONNECTION!,
  dimension: 1536,
  distance: 'cosine',
  indexType: 'hnsw',
  schema: z.object({ text: z.string() }),
});

// store.put(atomWithEmbedding, ctx);
// store.search(queryEmbedding, k, filters, ctx);

Reference

Canonical API surface: docs/spec-adapters.md. Core types: docs/spec-api-surface.md.