mirror of
https://github.com/pgvector/pgvector.git
synced 2026-06-29 01:01:17 +08:00
32 lines
1007 B
Perl
32 lines
1007 B
Perl
use strict;
|
|
use warnings;
|
|
use PostgresNode;
|
|
use TestLib;
|
|
use Test::More tests => 3;
|
|
|
|
# Initialize node
|
|
my $node = get_new_node('node');
|
|
$node->init;
|
|
$node->start;
|
|
|
|
# Create table
|
|
$node->safe_psql("postgres", "CREATE EXTENSION vector;");
|
|
$node->safe_psql("postgres", "CREATE TABLE tst (v vector(3));");
|
|
$node->safe_psql("postgres",
|
|
"INSERT INTO tst SELECT random_vector(3) FROM generate_series(1, 100000) i;"
|
|
);
|
|
|
|
$node->safe_psql("postgres", "CREATE INDEX lists50 ON tst USING ivfflat (v) WITH (lists = 50);");
|
|
$node->safe_psql("postgres", "CREATE INDEX lists100 ON tst USING ivfflat (v) WITH (lists = 100);");
|
|
|
|
# Test prefers more lists
|
|
my $res = $node->safe_psql("postgres", "EXPLAIN SELECT v FROM tst ORDER BY v <-> '[0.5,0.5,0.5]' LIMIT 10;");
|
|
like($res, qr/lists100/);
|
|
unlike($res, qr/lists50/);
|
|
|
|
# Test errors with too much memory
|
|
my ($ret, $stdout, $stderr) = $node->psql("postgres",
|
|
"CREATE INDEX lists10000 ON tst USING ivfflat (v) WITH (lists = 10000);"
|
|
);
|
|
like($stderr, qr/memory required is/);
|