mirror of
https://github.com/pgvector/pgvector.git
synced 2026-07-06 04:30:56 +08:00
44 lines
1.3 KiB
Perl
44 lines
1.3 KiB
Perl
use strict;
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use warnings FATAL => 'all';
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use PostgreSQL::Test::Cluster;
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use PostgreSQL::Test::Utils;
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use Test::More;
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my $dim = 3;
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my $array_sql = join(",", ('random()') x $dim);
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# Initialize node
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my $node = PostgreSQL::Test::Cluster->new('node');
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$node->init;
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$node->start;
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# Create table
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$node->safe_psql("postgres", "CREATE EXTENSION vector;");
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$node->safe_psql("postgres", "CREATE TABLE tst (i int4, v vector($dim));");
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$node->safe_psql("postgres",
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"INSERT INTO tst SELECT i, ARRAY[$array_sql] FROM generate_series(1, 100000) i;"
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);
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$node->safe_psql("postgres", qq(
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SET maintenance_work_mem = '128MB';
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SET max_parallel_maintenance_workers = 2;
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CREATE INDEX ON tst USING hnsw (v vector_l2_ops)
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));
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my $count = $node->safe_psql("postgres", qq(
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SET enable_seqscan = off;
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SET hnsw.streaming = on;
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SET work_mem = '8MB';
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SELECT COUNT(*) FROM (SELECT v FROM tst WHERE i % 10000 = 0 ORDER BY v <-> (SELECT v FROM tst LIMIT 1) LIMIT 11) t;
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));
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is($count, 10);
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my ($ret, $stdout, $stderr) = $node->psql("postgres", qq(
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SET enable_seqscan = off;
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SET hnsw.streaming = on;
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SET work_mem = '2MB';
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SELECT COUNT(*) FROM (SELECT v FROM tst WHERE i % 10000 = 0 ORDER BY v <-> (SELECT v FROM tst LIMIT 1) LIMIT 11) t;
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));
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like($stderr, qr/iterative search exceeded work_mem after \d+ tuples/);
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done_testing();
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