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Updated readme [skip ci]

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Andrew Kane
2023-03-31 18:47:15 -07:00
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@@ -78,12 +78,18 @@ SELECT * FROM items WHERE embedding <-> '[3,1,2]' < 5;
Note: Combine with `ORDER BY` and `LIMIT` to use an index Note: Combine with `ORDER BY` and `LIMIT` to use an index
Get the average of vectors Average vectors
```sql ```sql
SELECT AVG(embedding) FROM items; SELECT AVG(embedding) FROM items;
``` ```
Average groups of vectors
```sql
SELECT category_id, AVG(embedding) FROM items GROUP BY category_id;
```
## Indexing ## Indexing
Speed up queries with an approximate index. Add an index for each distance function you want to use. Speed up queries with an approximate index. Add an index for each distance function you want to use.