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Example code of partitech/doctrine-pgvector

Informations about the package doctrine-pgvector

PGVector for Doctrine

Description

PGVector type for Doctrine

Installation

Configuration Doctrine

Utilisation

You can now use vector type in your entities :

If you use symfony console make:entity add manually the length parameter attribute as vector. Length is your model embedding's dimension.

For example OpenAi use these dimensions:

text-embedding-3-small : 1536

text-embedding-3-large : 3072 (customizable)

Mistral AI

Mistral-embed : 1024

Additionally, you should manually add an HNSW index to your vector's column. Be aware that dimension should be 2000 max for HNSW indexes.

L2 distance

Inner product

Cosine distance

Basic usage:

distance

To get

use

Inner product

To get

use

Cosine similarity

To get

use

All versions of doctrine-pgvector with dependencies

PHP Build Version
Package Version
Requires php Version ^8.0
doctrine/dbal Version ^3.6
doctrine/orm Version ^2.19|^3.0
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