Describe the bug

Why does the index and and distance calculations become all zeroes?

Steps to reproduce

index = Index(ndim=3)
a = np.uint8([
    [0, 0, 1],
    [0, 1, 2],
    [1, 2, 3],
])
index.add([0,1,2], a)
for i in range(3):
    print(index[i])
pd.DataFrame([r for r in index.search(a, 4)])

Expected behavior

If you do this with DuckDB:

df = pd.DataFrame({"idx": [0,1,2], "vec": [v for v in a]})
duckdb.sql("""
SELECT a.idx, b.idx, LIST_DISTANCE(a.vec, b.vec)
FROM df a JOIN df b ON 1=1
""").df()

USearch version

2.17.7

Operating System

Amazon Linux

Hardware architecture

x86

Which interface are you using?

Python bindings

Contact Details

No response

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Is there an existing issue for this?

• I have searched the existing issues

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