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Added HNSW index type - #181

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This commit is contained in:
Andrew Kane
2023-08-08 16:42:47 -07:00
parent 19a6c81367
commit 51d292c93d
29 changed files with 3927 additions and 7 deletions
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43
test/t/011_hnsw_vacuum.pl Normal file
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use strict;
use warnings;
use PostgresNode;
use TestLib;
use Test::More;
my $dim = 3;
my @r = ();
for (1 .. $dim) {
my $v = int(rand(1000)) + 1;
push(@r, "i % $v");
}
my $array_sql = join(", ", @r);
# Initialize node
my $node = get_new_node('node');
$node->init;
$node->start;
# Create table and index
$node->safe_psql("postgres", "CREATE EXTENSION vector;");
$node->safe_psql("postgres", "CREATE TABLE tst (i int4, v vector($dim));");
$node->safe_psql("postgres",
"INSERT INTO tst SELECT i % 10, ARRAY[$array_sql] FROM generate_series(1, 10000) i;"
);
$node->safe_psql("postgres", "CREATE INDEX ON tst USING hnsw (v vector_l2_ops);");
# Get size
my $size = $node->safe_psql("postgres", "SELECT pg_total_relation_size('tst_v_idx');");
# Delete all, vacuum, and insert same data
$node->safe_psql("postgres", "DELETE FROM tst;");
$node->safe_psql("postgres", "VACUUM tst;");
$node->safe_psql("postgres",
"INSERT INTO tst SELECT i % 10, ARRAY[$array_sql] FROM generate_series(1, 10000) i;"
);
# Check size
my $new_size = $node->safe_psql("postgres", "SELECT pg_total_relation_size('tst_v_idx');");
cmp_ok($new_size, "<=", $size * 1.01, "size does not increase too much");
done_testing();