diff --git a/dotnet/src/VectorData/PgVector/PostgresSqlBuilder.cs b/dotnet/src/VectorData/PgVector/PostgresSqlBuilder.cs
index acfa930a67ec..322820f6d9af 100644
--- a/dotnet/src/VectorData/PgVector/PostgresSqlBuilder.cs
+++ b/dotnet/src/VectorData/PgVector/PostgresSqlBuilder.cs
@@ -269,7 +269,7 @@ internal static void BuildGetCommand<TKey>(NpgsqlCommand command, string schema,
     internal static void BuildGetBatchCommand<TKey>(NpgsqlCommand command, string schema, string tableName, CollectionModel model, List<TKey> keys, bool includeVectors = false)
         where TKey : notnull
     {
-        NpgsqlDbType? keyType = PostgresPropertyMapping.GetNpgsqlDbType(typeof(TKey)) ?? throw new ArgumentException($"Unsupported key type {typeof(TKey).Name}");
+        NpgsqlDbType? keyType = PostgresPropertyMapping.GetNpgsqlDbType(model.KeyProperty.Type) ?? throw new UnreachableException($"Unsupported key type {model.KeyProperty.Type.Name}");
 
         // Generate the column names
         var columns = model.Properties
diff --git a/dotnet/test/VectorData/InMemory.ConformanceTests/ModelTests/InMemoryDynamicModelTests.cs b/dotnet/test/VectorData/InMemory.ConformanceTests/ModelTests/InMemoryDynamicModelTests.cs
index 7f2c7d073e22..5333f1880cac 100644
--- a/dotnet/test/VectorData/InMemory.ConformanceTests/ModelTests/InMemoryDynamicModelTests.cs
+++ b/dotnet/test/VectorData/InMemory.ConformanceTests/ModelTests/InMemoryDynamicModelTests.cs
@@ -27,6 +27,30 @@ public override async Task GetAsync_single_record(bool includeVectors)
         AssertEquivalent(expectedRecord, received, includeVectors: true, fixture.TestStore.VectorsComparable);
     }
 
+    public override async Task GetAsync_multiple_records(bool includeVectors)
+    {
+        if (includeVectors)
+        {
+            await base.GetAsync_multiple_records(includeVectors);
+            return;
+        }
+
+        // InMemory always returns the vectors (IncludeVectors = false isn't respected)
+        var expectedRecords = fixture.TestData.Take(2);
+        var ids = expectedRecords.Select(record => record[KeyPropertyName]!);
+
+        var received = await fixture.Collection.GetAsync(ids, new() { IncludeVectors = false }).ToArrayAsync();
+
+        foreach (var record in expectedRecords)
+        {
+            AssertEquivalent(
+                record,
+                received.Single(r => r[KeyPropertyName]!.Equals(record[KeyPropertyName])),
+                includeVectors: true,
+                fixture.TestStore.VectorsComparable);
+        }
+    }
+
     public override async Task GetAsync_with_filter(bool includeVectors)
     {
         if (includeVectors)
diff --git a/dotnet/test/VectorData/VectorData.ConformanceTests/ModelTests/DynamicModelTests.cs b/dotnet/test/VectorData/VectorData.ConformanceTests/ModelTests/DynamicModelTests.cs
index e27fac2eefe8..f81b80c9c044 100644
--- a/dotnet/test/VectorData/VectorData.ConformanceTests/ModelTests/DynamicModelTests.cs
+++ b/dotnet/test/VectorData/VectorData.ConformanceTests/ModelTests/DynamicModelTests.cs
@@ -24,24 +24,23 @@ public virtual async Task GetAsync_single_record(bool includeVectors)
         AssertEquivalent(expectedRecord, received, includeVectors, fixture.TestStore.VectorsComparable);
     }
 
-    // TODO: https://github.com/microsoft/semantic-kernel/issues/13303
-    // [ConditionalTheory, MemberData(nameof(IncludeVectorsData))]
-    // public virtual Task GetAsync_multiple_records(bool includeVectors)
-    // {
-    //     var expectedRecords = fixture.TestData.Take(2);
-    //     var ids = expectedRecords.Select(record => record[KeyPropertyName]!);
-
-    //     var received = await fixture.Collection.GetAsync(ids, new() { IncludeVectors = includeVectors }).ToArrayAsync();
-
-    //     foreach (var record in expectedRecords)
-    //     {
-    //         AssertEquivalent(
-    //             record,
-    //             received.Single(r => r[KeyPropertyName]!.Equals(record[KeyPropertyName])),
-    //             includeVectors,
-    //             fixture.TestStore.VectorsComparable);
-    //     }
-    // }
+    [ConditionalTheory, MemberData(nameof(IncludeVectorsData))]
+    public virtual async Task GetAsync_multiple_records(bool includeVectors)
+    {
+        var expectedRecords = fixture.TestData.Take(2);
+        var ids = expectedRecords.Select(record => record[KeyPropertyName]!);
+
+        var received = await fixture.Collection.GetAsync(ids, new() { IncludeVectors = includeVectors }).ToArrayAsync();
+
+        foreach (var record in expectedRecords)
+        {
+            AssertEquivalent(
+                record,
+                received.Single(r => r[KeyPropertyName]!.Equals(record[KeyPropertyName])),
+                includeVectors,
+                fixture.TestStore.VectorsComparable);
+        }
+    }
 
     [ConditionalFact]
     public virtual async Task GetAsync_throws_for_null_key()
@@ -241,42 +240,39 @@ public virtual async Task Update_single_record()
         AssertEquivalent(updated, received, includeVectors: true, fixture.TestStore.VectorsComparable);
     }
 
-    // TODO: https://github.com/microsoft/semantic-kernel/issues/13303
-    // [ConditionalFact]
-    // public virtual async Task Insert_multiple_records()
-    // {
-    //     Dictionary<string, object?>[] newRecords =
-    //     [
-    //         new()
-    //         {
-    //             [KeyPropertyName] = fixture.GenerateNextKey<TKey>(),
-    //             [IntegerPropertyName] = 100,
-    //             [StringPropertyName] = "New record 1",
-    //             [EmbeddingPropertyName] = new ReadOnlyMemory<float>([10, 0, 1])
-    //         },
-    //         new()
-    //         {
-    //             [KeyPropertyName] = fixture.GenerateNextKey<TKey>(),
-    //             [IntegerPropertyName] = 101,
-    //             [StringPropertyName] = "New record 2",
-    //             [EmbeddingPropertyName] = new ReadOnlyMemory<float>([10, 0, 2])
-    //         },
-    //     ];
-
-    //     var keys = newRecords.Select(record => record[KeyPropertyName]!).ToArray();
-    //     Assert.Empty(await this.Collection.GetAsync(keys).ToArrayAsync());
-
-    //     await this.Collection.UpsertAsync(newRecords);
-
-    //     var received = await this.Collection.GetAsync(keys, new() { IncludeVectors = true }).ToArrayAsync();
-
-    //     Assert.Collection(
-    //         received.OrderBy(r => r[IntegerPropertyName]),
-    //         r => AssertEquivalent(newRecords[0], r, includeVectors: true, fixture.TestStore.VectorsComparable),
-    //         r => AssertEquivalent(newRecords[1], r, includeVectors: true, fixture.TestStore.VectorsComparable));
-
-    //     Assert.Equal(fixture.TestData.Count + 2, await this.GetRecordCount());
-    // }
+    [ConditionalFact]
+    public virtual async Task Insert_multiple_records()
+    {
+        Dictionary<string, object?>[] newRecords =
+        [
+            new()
+            {
+                [KeyPropertyName] = fixture.GenerateNextKey<TKey>(),
+                [IntegerPropertyName] = 100,
+                [StringPropertyName] = "New record 1",
+                [EmbeddingPropertyName] = new ReadOnlyMemory<float>([10, 0, 1])
+            },
+            new()
+            {
+                [KeyPropertyName] = fixture.GenerateNextKey<TKey>(),
+                [IntegerPropertyName] = 101,
+                [StringPropertyName] = "New record 2",
+                [EmbeddingPropertyName] = new ReadOnlyMemory<float>([10, 0, 2])
+            },
+        ];
+
+        var keys = newRecords.Select(record => record[KeyPropertyName]!).ToArray();
+        Assert.Empty(await this.Collection.GetAsync(keys).ToArrayAsync());
+
+        await this.Collection.UpsertAsync(newRecords);
+
+        var received = await this.Collection.GetAsync(keys, new() { IncludeVectors = true }).ToArrayAsync();
+
+        Assert.Collection(
+            received.OrderBy(r => r[IntegerPropertyName]),
+            r => AssertEquivalent(newRecords[0], r, includeVectors: true, fixture.TestStore.VectorsComparable),
+            r => AssertEquivalent(newRecords[1], r, includeVectors: true, fixture.TestStore.VectorsComparable));
+    }
 
     #endregion Upsert