Capabilities

• Dense vectors stored beside JSONB document and metadata values.
• SQL upsert on deterministic physical IDs.
• Cosine, L2, and inner-product distance operators.
• Connection through a pg client, pool, or connection string.
• Parameterized equality and numeric comparison filters.
• search retrieval through the core VectorStore interface, with retrieveDocuments and createVectorSearchTool integration from @anvia/core/vector-store.
• Runtime validation of the vector column dimension.

The adapter can create the extension and base table, but it does not create HNSW or IVFFlat indexes. PgVectorClient.close() shuts down a pool the adapter created; injected clients remain caller-owned. The adapter does not manage database migrations, backups, RLS, or retries.

Metadata keys beginning with __anvia_ are reserved. See the API reference.