data comparison
pgvector vs PostgreSQL
Both are credible choices. The decision comes down to which property your workload actually depends on, and neither vendor pays us to say otherwise.
- pgvector
- Open source
- PostgreSQL
- Open source
- Category
- data
Side by side
pgvector
Vector search inside Postgres, no separate vector database to operate.
- Strongest at
- one database for relational and vector data, with transactions across both
- Trade-off
- at very large vector volumes a dedicated index outperforms it
- Vendor
- Open source
PostgreSQL
Our default database, relational, JSON, full-text and vector in one engine.
- Strongest at
- it handles far more workload than teams expect, with one operational model
- Trade-off
- genuine analytical workloads past a certain scale belong in a warehouse
- Vendor
- Open source
How we would actually choose
Choose pgvector when one database for relational and vector data, with transactions across both is the property your workload depends on, and accept that at very large vector volumes a dedicated index outperforms it.
Choose PostgreSQL when it handles far more workload than teams expect, with one operational model matters more, accepting that genuine analytical workloads past a certain scale belong in a warehouse.
In practice most production systems we build use both, routed by task. Standardising on one option for tidiness usually costs more than the tidiness is worth.
Orqent Labs holds no reseller commission on pgvector or PostgreSQL. We benchmark both on your workload and report what the numbers say.
Questions
pgvector or PostgreSQL, which should we use?
Pick pgvector when one database for relational and vector data, with transactions across both is what your workload depends on. Pick PostgreSQL when it handles far more workload than teams expect, with one operational model matters more. Most production systems we build end up using both for different tasks rather than standardising on one.
What is the catch with pgvector?
At very large vector volumes a dedicated index outperforms it.
What is the catch with PostgreSQL?
Genuine analytical workloads past a certain scale belong in a warehouse.
Do you have a preference?
Not a fixed one, and we hold no reseller commission on either. We benchmark both on your actual workload and recommend from the result, which occasionally means recommending neither.
Still deciding between pgvector and PostgreSQL?
Send us the workload. We will benchmark both and show you the numbers.
Or email bd@dtrasglobal.com · call +91 74118 77878