liuyu/pgvector
1
0
Fork 0
mirror of https://github.com/pgvector/pgvector.git synced 2026-07-01 02:02:10 +08:00
Code Issues Packages Projects Releases Wiki Activity

Do not use index without limit or if limit + offset > expected tuples

Browse Source
This commit is contained in:
Andrew Kane
2024-01-20 15:16:30 -08:00
parent 042ddfdc8a
commit 63c4af0454
23 changed files with 177 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
test/sql/ivfflat_cosine.sql
View File

@@ -6,8 +6,8 @@ CREATE INDEX ON t USING ivfflat (val vector_cosine_ops) WITH (lists = 1);
INSERT INTO t (val) VALUES ('[1,2,4]');
SELECT * FROM t ORDER BY val <=> '[3,3,3]';
SELECT COUNT(*) FROM (SELECT * FROM t ORDER BY val <=> '[0,0,0]') t2;
SELECT COUNT(*) FROM (SELECT * FROM t ORDER BY val <=> (SELECT NULL::vector)) t2;
SELECT * FROM t ORDER BY val <=> '[3,3,3]' LIMIT 5;
SELECT COUNT(*) FROM (SELECT * FROM t ORDER BY val <=> '[0,0,0]' LIMIT 5) t2;
SELECT COUNT(*) FROM (SELECT * FROM t ORDER BY val <=> (SELECT NULL::vector) LIMIT 5) t2;
DROP TABLE t;