DbVectorMetrics class abstract final

Distance names vec0 stores in distance_metric.

DbVector.metric is still a String. l2 and cosine are the metrics sqlite_plus_vec implements. Another metric can be written as a plain identifier; vec0 rejects it when the table is created.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

cosine → const String

One minus the cosine similarity, in the range 0 to 2.

l2 → const String

Euclidean distance, sqrt of the sum of squared coordinate differences.