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https://github.com/pgvector/pgvector.git
synced 2026-06-06 05:51:21 +08:00
55 lines
1.3 KiB
Perl
55 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 $node;
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my @queries = ();
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my $dim = 5;
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my $array_sql = join(",", ('floor(random() * 4)::int - 2') x $dim);
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# Initialize node
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$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 (v vector($dim));");
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$node->safe_psql("postgres",
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"INSERT INTO tst SELECT ARRAY[$array_sql] FROM generate_series(1, 10000) i;"
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);
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# Generate queries
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for (1 .. 20)
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{
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my @r = ();
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for (1 .. $dim)
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{
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push(@r, int(rand() * 4) - 2);
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}
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push(@queries, "[" . join(",", @r) . "]");
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}
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# Check each distance function
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my @functions = ("l2_distance", "inner_product", "cosine_distance", "l1_distance");
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for my $function (@functions)
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{
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for my $query (@queries)
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{
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my $expected = $node->safe_psql("postgres", "SELECT $function(v, '$query') FROM tst");
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# Test halfvec
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my $actual = $node->safe_psql("postgres", "SELECT $function(v::halfvec, '$query'::vector::halfvec) FROM tst");
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is($expected, $actual, "halfvec $function");
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# Test sparsevec
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$actual = $node->safe_psql("postgres", "SELECT $function(v::sparsevec, '$query'::vector::sparsevec) FROM tst");
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is($expected, $actual, "sparsevec $function");
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}
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}
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done_testing();
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