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e70fd4fecc
binary vectors and hamming distance can work on only IVF_FLAT, so introduce them all in this PR. --------- Signed-off-by: BubbleCal <bubble-cal@outlook.com>
45 lines
1.2 KiB
Python
45 lines
1.2 KiB
Python
import shutil
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# --8<-- [start:imports]
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import lancedb
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import numpy as np
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import pytest
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# --8<-- [end:imports]
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shutil.rmtree("data/binary_lancedb", ignore_errors=True)
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def test_binary_vector():
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# --8<-- [start:sync_binary_vector]
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db = lancedb.connect("data/binary_lancedb")
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data = [
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{
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"id": i,
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"vector": np.random.randint(0, 256, size=16),
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}
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for i in range(1024)
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]
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tbl = db.create_table("my_binary_vectors", data=data)
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query = np.random.randint(0, 256, size=16)
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tbl.search(query).to_arrow()
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# --8<-- [end:sync_binary_vector]
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db.drop_table("my_binary_vectors")
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@pytest.mark.asyncio
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async def test_binary_vector_async():
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# --8<-- [start:async_binary_vector]
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db = await lancedb.connect_async("data/binary_lancedb")
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data = [
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{
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"id": i,
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"vector": np.random.randint(0, 256, size=16),
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}
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for i in range(1024)
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]
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tbl = await db.create_table("my_binary_vectors", data=data)
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query = np.random.randint(0, 256, size=16)
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await tbl.query().nearest_to(query).to_arrow()
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# --8<-- [end:async_binary_vector]
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await db.drop_table("my_binary_vectors")
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