liuyu/pgvector
1
0
Fork 0
mirror of https://github.com/pgvector/pgvector.git synced 2026-07-06 20:50:57 +08:00
Code Issues Packages Projects Releases Wiki Activity

Added support for indexing sparsevec with L1 distance [skip ci]

Browse Source
This commit is contained in:
Andrew Kane
2024-04-22 13:08:12 -07:00
parent 70b299a7ff
commit 9f4b770db3
6 changed files with 57 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
test/expected/hnsw_sparsevec_l1.out Normal file
View File

@@ -0,0 +1,21 @@
SET enable_seqscan = off;
CREATE TABLE t (val sparsevec(3));
INSERT INTO t (val) VALUES ('{}/3'), ('{1:1,2:2,3:3}/3'), ('{1:1,2:1,3:1}/3'), (NULL);
CREATE INDEX ON t USING hnsw (val sparsevec_l1_ops);
INSERT INTO t (val) VALUES ('{1:1,2:2,3:4}/3');
SELECT * FROM t ORDER BY val <+> '{1:3,2:3,3:3}/3';
val
-----------------
{1:1,2:2,3:3}/3
{1:1,2:2,3:4}/3
{1:1,2:1,3:1}/3
{}/3
(4 rows)
SELECT COUNT(*) FROM (SELECT * FROM t ORDER BY val <+> (SELECT NULL::sparsevec)) t2;
count
-------
4
(1 row)
DROP TABLE t;

12
test/sql/hnsw_sparsevec_l1.sql Normal file
View File

@@ -0,0 +1,12 @@
SET enable_seqscan = off;
CREATE TABLE t (val sparsevec(3));
INSERT INTO t (val) VALUES ('{}/3'), ('{1:1,2:2,3:3}/3'), ('{1:1,2:1,3:1}/3'), (NULL);
CREATE INDEX ON t USING hnsw (val sparsevec_l1_ops);
INSERT INTO t (val) VALUES ('{1:1,2:2,3:4}/3');
SELECT * FROM t ORDER BY val <+> '{1:3,2:3,3:3}/3';
SELECT COUNT(*) FROM (SELECT * FROM t ORDER BY val <+> (SELECT NULL::sparsevec)) t2;
DROP TABLE t;

4
test/t/022_hnsw_sparsevec_build_recall.pl
View File

@@ -67,8 +67,8 @@ for (1 .. 20)
}
# Check each index type
my @operators = ("<->", "<#>", "<=>");
my @opclasses = ("sparsevec_l2_ops", "sparsevec_ip_ops", "sparsevec_cosine_ops");
my @operators = ("<->", "<#>", "<=>", "<+>");
my @opclasses = ("sparsevec_l2_ops", "sparsevec_ip_ops", "sparsevec_cosine_ops", "sparsevec_l1_ops");
for my $i (0 .. $#operators)
{

4
test/t/025_hnsw_sparsevec_insert_recall.pl
View File

@@ -64,8 +64,8 @@ for (1 .. 20)
}
# Check each index type
my @operators = ("<->", "<#>", "<=>");
my @opclasses = ("sparsevec_l2_ops", "sparsevec_ip_ops", "sparsevec_cosine_ops");
my @operators = ("<->", "<#>", "<=>", "<+>");
my @opclasses = ("sparsevec_l2_ops", "sparsevec_ip_ops", "sparsevec_cosine_ops", "sparsevec_l1_ops");
for my $i (0 .. $#operators)
{