liuyu/pgvector
1
0
Fork 0
mirror of https://github.com/pgvector/pgvector.git synced 2026-07-11 23:26:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

Added EXPLAIN ANALYZE to readme [skip ci]

Browse Source
This commit is contained in:
Andrew Kane
2023-03-05 17:48:01 -08:00
parent a1ab0a453c
commit 4f8620fe9e
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
README.md
View File

@@ -175,6 +175,12 @@ To speed up queries with an index, increase the number of inverted lists (at the
CREATE INDEX ON items USING ivfflat (embedding vector_l2_ops) WITH (lists = 1000); CREATE INDEX ON items USING ivfflat (embedding vector_l2_ops) WITH (lists = 1000);
``` ```
Use `EXPLAIN ANALYZE` to debug performance
```sql
EXPLAIN ANALYZE SELECT * FROM items ORDER BY embedding <-> '[3,1,2]' LIMIT 1;
```
## Reference ## Reference
### Vector Type ### Vector Type