diff --git a/python/python/tests/test_table.py b/python/python/tests/test_table.py index e5c4ad801..8fc06ea69 100644 --- a/python/python/tests/test_table.py +++ b/python/python/tests/test_table.py @@ -2759,15 +2759,40 @@ def test_create_with_embedding_function(mem_db: DBConnection): assert actual == expected +def test_create_f16_table_from_arrow_data(mem_db: DBConnection): + dimension = 32 + num_rows = 512 + values = pa.array( + np.random.default_rng(42) + .standard_normal(num_rows * dimension) + .astype(np.float16) + ) + df = pa.table( + { + "text": [f"s-{i}" for i in range(num_rows)], + "vector": pa.FixedSizeListArray.from_arrays(values, dimension), + } + ) + table = mem_db.create_table("f16_tbl", data=df) + assert table.schema.field("vector").type == pa.list_(pa.float16(), dimension) + table.create_index(num_partitions=2, num_sub_vectors=2) + + query = df["vector"][2].as_py() + expected = table.search(query).limit(2).to_arrow() + + assert "s-2" in expected["text"].to_pylist() + + def test_create_f16_table(mem_db: DBConnection): class MyTable(LanceModel): text: str vector: Vector(32, value_type=pa.float16()) + rng = np.random.default_rng(42) df = pa.table( { "text": [f"s-{i}" for i in range(512)], - "vector": [np.random.randn(32).astype(np.float16) for _ in range(512)], + "vector": [rng.standard_normal(32).astype(np.float16) for _ in range(512)], } ) table = mem_db.create_table(