langchain.vectorstores.pgvector.DistanceStrategy

class langchain.vectorstores.pgvector.DistanceStrategy(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)[source]

Enumerator of the Distance strategies.

EUCLIDEAN = 'l2'
COSINE = 'cosine'
MAX_INNER_PRODUCT = 'inner'