Schema

Here is the schema provided by pgvecto.rs.

List of data types

Name	Description
vector	vector, scalar type of which is “binary32” defined in IEEE 754-2008
vecf16	vector, scalar type of which is “binary16” defined in IEEE 754-2008
vector_index_stat	a composite type representing vector index statistics

List of operators

Name	Left arg type	Right arg type	Result type	Description
+	vector	vector	vector	element-wise arithmetic
+	vecf16	vecf16	vecf16	element-wise arithmetic
-	vector	vector	vector	element-wise arithmetic
-	vecf16	vecf16	vecf16	element-wise arithmetic
=	vector	vector	boolean	dictionary order comparison
=	vecf16	vecf16	boolean	dictionary order comparison
<>	vector	vector	boolean	dictionary order comparison
<>	vecf16	vecf16	boolean	dictionary order comparison
<	vector	vector	boolean	dictionary order comparison
<	vecf16	vecf16	boolean	dictionary order comparison
>	vector	vector	boolean	dictionary order comparison
>	vecf16	vecf16	boolean	dictionary order comparison
<=	vector	vector	boolean	dictionary order comparison
<=	vecf16	vecf16	boolean	dictionary order comparison
>=	vector	vector	boolean	dictionary order comparison
>=	vecf16	vecf16	boolean	dictionary order comparison
<->	vector	vector	real	squared Euclidean distance
<->	vecf16	vecf16	real	squared Euclidean distance
<#>	vector	vector	real	negative dot product
<#>	vecf16	vecf16	real	negative dot product
<=>	vector	vector	real	cosine distance
<=>	vecf16	vecf16	real	cosine distance

List of functions

List of casts

Source type	Target type	Implicit?
real[]	vector	yes
vector	real[]	yes
vector	vecf16	no

List of access methods

Name	Type	Description
vectors	Index	pgvecto.rs vector index

List of operator families

AM	Operator family	Applicable types
vectors	vector_cos_ops	vector
vectors	vector_dot_ops	vector
vectors	vector_l2_ops	vector
vectors	vecf16_cos_ops	vecf16
vectors	vecf16_dot_ops	vecf16
vectors	vecf16_l2_ops	vecf16

List of operator classes

AM	Input type	Operator class	Default?	Description
vectors	vector	vector_l2_ops	no	squared Euclidean distance
vectors	vector	vector_dot_ops	no	negative dot product
vectors	vector	vector_cos_ops	no	cosine distance
vectors	vecf16	vecf16_l2_ops	no	squared Euclidean distance
vectors	vecf16	vecf16_dot_ops	no	negative dot product
vectors	vecf16	vecf16_cos_ops	no	cosine distance

List of views

Name	Description
pg_vector_index_stat	A view provided for vector index statistics