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Updated guidance on lists [skip ci]

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Andrew Kane
2023-03-22 14:00:47 -07:00
parent 8d95510302
commit 81e9e72fbc
1 changed files with 4 additions and 1 deletions
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@@ -109,7 +109,10 @@ Specify the number of inverted lists (100 by default)
CREATE INDEX ON items USING ivfflat (embedding vector_l2_ops) WITH (lists = 100); CREATE INDEX ON items USING ivfflat (embedding vector_l2_ops) WITH (lists = 100);
``` ```
A lower value provides better recall at the cost of speed. A [good place to start](https://github.com/facebookresearch/faiss/issues/112) is `4 * sqrt(rows)`. A lower value provides better recall at the cost of speed. A good place to start is:
- `rows / 1000` for up to 1M rows
- `sqrt(rows)` for over 1M rows
### Query Options ### Query Options