mirror of
https://github.com/pgvector/pgvector.git
synced 2026-06-30 01:31:15 +08:00
21 lines
444 B
Plaintext
21 lines
444 B
Plaintext
SET enable_seqscan = off;
|
|
CREATE TABLE t (val vector(3));
|
|
INSERT INTO t (val) VALUES ('[0,0,0]'), ('[1,2,3]'), ('[1,1,1]'), (NULL);
|
|
CREATE INDEX ON t USING ivfflat (val vector_ip_ops) WITH (lists = 1);
|
|
INSERT INTO t (val) VALUES ('[1,2,4]');
|
|
SELECT * FROM t ORDER BY val <#> '[3,3,3]';
|
|
val
|
|
---------
|
|
[1,2,4]
|
|
[1,2,3]
|
|
[1,1,1]
|
|
[0,0,0]
|
|
(4 rows)
|
|
|
|
SELECT * FROM t ORDER BY val <#> (SELECT NULL::vector);
|
|
val
|
|
-----
|
|
(0 rows)
|
|
|
|
DROP TABLE t;
|