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pgvector

by PostgreSQL Extension

Vector similarity search for PostgreSQL

pgvector is a PostgreSQL extension that adds vector similarity search capabilities, enabling AI memory storage alongside traditional relational data.

Ease of Use
0/10
Community
0/10
Performance
0/10
Documentation
0/10

🎯 Key Features

Vector similarity search

Exact and approximate search

Multiple distance metrics

Index support (IVFFlat, HNSW)

SQL interface

ACID compliance

Relational + vector data

Standard Postgres tools

Strengths

Uses existing Postgres infrastructure

Combines relational and vector data

Mature ecosystem

ACID compliance

Cost-effective

Limitations

Not optimized for vectors

Limited scalability

Slower than specialized DBs

Manual optimization needed

Best For

  • Existing Postgres users
  • Small to medium datasets
  • Combined relational/vector needs
  • Budget-conscious projects

Not Recommended For