Module ops 

Distance operators and similarity metrics for pgvector.

pgvector supports multiple distance functions, each with a corresponding PostgreSQL operator. This module provides type-safe abstractions for these.

Operators

Metric	Operator	Index Ops Class
L2 (Euclidean)	<->	vector_l2_ops
Inner Product	<#>	vector_ip_ops
Cosine	<=>	vector_cosine_ops
L1 (Manhattan)	<+>	vector_l1_ops
Hamming	<~>	bit_hamming_ops
Jaccard	<%>	bit_jaccard_ops

Structs

SearchParams

Configuration for setting pgvector search parameters.

Enums

BinaryDistanceMetric

Binary vector distance metric supported by pgvector.

DistanceMetric

Vector distance metric supported by pgvector.

Functions

distance_param_sql

Generate SQL for computing distance with a parameter placeholder.

distance_sql

Generate SQL for computing the distance between a column and a query vector.

nearest_neighbor_sql

Generate a complete nearest-neighbor search query.

order_by_distance

Generate an ORDER BY clause for nearest-neighbor search.

radius_search_sql

Generate SQL for a distance-filtered search (within a radius).