mirror of
https://github.com/pgvector/pgvector.git
synced 2026-06-06 05:51:21 +08:00
13 lines
369 B
SQL
13 lines
369 B
SQL
SET enable_seqscan = off;
|
|
|
|
CREATE TABLE t (val halfvec(3));
|
|
INSERT INTO t (val) VALUES ('[0,0,0]'), ('[1,2,3]'), ('[1,1,1]'), (NULL);
|
|
CREATE INDEX ON t USING hnsw (val halfvec_l1_ops);
|
|
|
|
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 <+> (SELECT NULL::halfvec)) t2;
|
|
|
|
DROP TABLE t;
|