Added tests for double and numeric arrays

tests/test_django.py

@@ -3,7 +3,8 @@
 from django.contrib.postgres.fields import ArrayField
 from django.core import serializers
 from django.db import connection, migrations, models
-from django.db.models import Avg, Sum
+from django.db.models import Avg, Sum, FloatField, DecimalField
+from django.db.models.functions import Cast
 from django.db.migrations.loader import MigrationLoader
 from django.forms import ModelForm
 from math import sqrt
@@ -48,6 +49,8 @@ class Item(models.Model):
     binary_embedding = BitField(length=3, null=True, blank=True)
     sparse_embedding = SparseVectorField(dimensions=3, null=True, blank=True)
     embeddings = ArrayField(VectorField(dimensions=3), null=True, blank=True)
+    double_embedding = ArrayField(FloatField(), null=True, blank=True)
+    numeric_embedding = ArrayField(DecimalField(max_digits=20, decimal_places=10), null=True, blank=True)
 
     class Meta:
         app_label = 'django_app'
@@ -85,6 +88,8 @@ class Migration(migrations.Migration):
                 ('binary_embedding', pgvector.django.BitField(length=3, null=True, blank=True)),
                 ('sparse_embedding', pgvector.django.SparseVectorField(dimensions=3, null=True, blank=True)),
                 ('embeddings', ArrayField(pgvector.django.VectorField(dimensions=3), null=True, blank=True)),
+                ('double_embedding', ArrayField(FloatField(), null=True, blank=True)),
+                ('numeric_embedding', ArrayField(DecimalField(max_digits=20, decimal_places=10), null=True, blank=True)),
             ],
         ),
         migrations.AddIndex(
@@ -448,3 +453,23 @@ def test_vector_array(self):
             item = Item.objects.get(pk=1)
             assert item.embeddings[0].tolist() == [1, 2, 3]
             assert item.embeddings[1].tolist() == [4, 5, 6]
+
+    def test_double_array(self):
+        Item(id=1, double_embedding=[1, 1, 1]).save()
+        Item(id=2, double_embedding=[2, 2, 2]).save()
+        Item(id=3, double_embedding=[1, 1, 2]).save()
+        distance = L2Distance(Cast('double_embedding', VectorField()), [1, 1, 1])
+        items = Item.objects.annotate(distance=distance).order_by(distance)
+        assert [v.id for v in items] == [1, 3, 2]
+        assert [v.distance for v in items] == [0, 1, sqrt(3)]
+        assert items[1].double_embedding == [1, 1, 2]
+
+    def test_numeric_array(self):
+        Item(id=1, numeric_embedding=[1, 1, 1]).save()
+        Item(id=2, numeric_embedding=[2, 2, 2]).save()
+        Item(id=3, numeric_embedding=[1, 1, 2]).save()
+        distance = L2Distance(Cast('numeric_embedding', VectorField()), [1, 1, 1])
+        items = Item.objects.annotate(distance=distance).order_by(distance)
+        assert [v.id for v in items] == [1, 3, 2]
+        assert [v.distance for v in items] == [0, 1, sqrt(3)]
+        assert items[1].numeric_embedding == [1, 1, 2]