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Updated readme [skip ci]

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Andrew Kane
2023-03-31 19:34:39 -07:00
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README.md
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Open-source vector similarity search for Postgres Open-source vector similarity search for Postgres
```sql Supports exact and approximate nearest neighbor search for L2 distance, inner product, and cosine distance
CREATE TABLE items (embedding vector(3));
CREATE INDEX ON items USING ivfflat (embedding vector_l2_ops);
SELECT * FROM items ORDER BY embedding <-> '[1,2,3]' LIMIT 5;
```
Supports L2 distance, inner product, and cosine distance
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