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89 lines
2.8 KiB
Perl
89 lines
2.8 KiB
Perl
# Based on postgres/contrib/bloom/t/001_wal.pl
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# Test generic xlog record work for ivfflat index replication.
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use strict;
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use warnings;
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use PostgresNode;
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use TestLib;
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use Test::More tests => 31;
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my $node_primary;
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my $node_replica;
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# Run few queries on both primary and replica and check their results match.
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sub test_index_replay
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{
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my ($test_name) = @_;
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# Wait for replica to catch up
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my $applname = $node_replica->name;
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my $caughtup_query;
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my $server_version_num = $node_primary->safe_psql("postgres", "SHOW server_version_num");
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if ($server_version_num >= 100000) {
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$caughtup_query = "SELECT pg_current_wal_lsn() <= replay_lsn FROM pg_stat_replication WHERE application_name = '$applname';";
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} else {
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# TODO figure out why replay location doesn't work
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$caughtup_query = "SELECT pg_current_xlog_location() <= write_location FROM pg_stat_replication WHERE application_name = '$applname';";
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}
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$node_primary->poll_query_until('postgres', $caughtup_query)
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or die "Timed out while waiting for replica 1 to catch up";
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my $r1 = rand();
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my $r2 = rand();
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my $r3 = rand();
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my $queries = qq(SET enable_seqscan=off;
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SELECT * FROM tst ORDER BY v <-> '[$r1,$r2,$r3]' LIMIT 10;
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);
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# Run test queries and compare their result
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my $primary_result = $node_primary->safe_psql("postgres", $queries);
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my $replica_result = $node_replica->safe_psql("postgres", $queries);
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is($primary_result, $replica_result, "$test_name: query result matches");
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return;
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}
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# Initialize primary node
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$node_primary = get_new_node('primary');
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$node_primary->init(allows_streaming => 1);
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$node_primary->start;
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my $backup_name = 'my_backup';
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# Take backup
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$node_primary->backup($backup_name);
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# Create streaming replica linking to primary
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$node_replica = get_new_node('replica');
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$node_replica->init_from_backup($node_primary, $backup_name,
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has_streaming => 1);
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$node_replica->start;
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# Create ivfflat index on primary
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$node_primary->safe_psql("postgres", "CREATE EXTENSION vector;");
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$node_primary->safe_psql("postgres", "CREATE TABLE tst (i int4, v vector(3));");
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$node_primary->safe_psql("postgres",
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"INSERT INTO tst SELECT i%10, ARRAY[random(), random(), random()] FROM generate_series(1,100000) i;"
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);
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$node_primary->safe_psql("postgres",
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"CREATE INDEX ON tst USING ivfflat (v);");
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# Test that queries give same result
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test_index_replay('initial');
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# Run 10 cycles of table modification. Run test queries after each modification.
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for my $i (1 .. 10)
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{
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$node_primary->safe_psql("postgres", "DELETE FROM tst WHERE i = $i;");
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test_index_replay("delete $i");
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$node_primary->safe_psql("postgres", "VACUUM tst;");
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test_index_replay("vacuum $i");
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my ($start, $end) = (100001 + ($i - 1) * 10000, 100000 + $i * 10000);
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$node_primary->safe_psql("postgres",
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"INSERT INTO tst SELECT i%10, ARRAY[random(), random(), random()] FROM generate_series($start,$end) i;"
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);
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test_index_replay("insert $i");
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}
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