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Added note about ef_construction [skip ci]

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Andrew Kane
2023-11-16 18:53:48 -08:00
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@@ -269,6 +269,8 @@ Specify HNSW parameters
CREATE INDEX ON items USING hnsw (embedding vector_l2_ops) WITH (m = 16, ef_construction = 64);
```
A higher value of `ef_construction` provides better recall at the cost of index build time / insert speed.
### Query Options
Specify the size of the dynamic candidate list for search (40 by default)