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d10c626de4
Per discussion, "location" is a rather vague term that could refer to multiple concepts. "LSN" is an unambiguous term for WAL locations and should be preferred. Some function names, view column names, and function output argument names used "lsn" already, but others used "location", as well as yet other terms such as "wal_position". Since we've already renamed a lot of things in this area from "xlog" to "wal" for v10, we may as well incur a bit more compatibility pain and make these names all consistent. David Rowley, minor additional docs hacking by me Discussion: https://postgr.es/m/CAKJS1f8O0njDKe8ePFQ-LK5-EjwThsDws6ohJ-+c6nWK+oUxtg@mail.gmail.com
81 lines
2.5 KiB
Perl
81 lines
2.5 KiB
Perl
# Test generic xlog record work for bloom 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_master;
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my $node_standby;
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# Run few queries on both master and standby and check their results match.
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sub test_index_replay
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{
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my ($test_name) = @_;
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# Wait for standby to catch up
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my $applname = $node_standby->name;
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my $caughtup_query =
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"SELECT pg_current_wal_lsn() <= write_lsn FROM pg_stat_replication WHERE application_name = '$applname';";
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$node_master->poll_query_until('postgres', $caughtup_query)
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or die "Timed out while waiting for standby 1 to catch up";
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my $queries = qq(SET enable_seqscan=off;
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SET enable_bitmapscan=on;
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SET enable_indexscan=on;
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SELECT * FROM tst WHERE i = 0;
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SELECT * FROM tst WHERE i = 3;
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SELECT * FROM tst WHERE t = 'b';
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SELECT * FROM tst WHERE t = 'f';
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SELECT * FROM tst WHERE i = 3 AND t = 'c';
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SELECT * FROM tst WHERE i = 7 AND t = 'e';
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);
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# Run test queries and compare their result
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my $master_result = $node_master->psql("postgres", $queries);
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my $standby_result = $node_standby->psql("postgres", $queries);
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is($master_result, $standby_result, "$test_name: query result matches");
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}
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# Initialize master node
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$node_master = get_new_node('master');
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$node_master->init(allows_streaming => 1);
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$node_master->start;
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my $backup_name = 'my_backup';
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# Take backup
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$node_master->backup($backup_name);
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# Create streaming standby linking to master
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$node_standby = get_new_node('standby');
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$node_standby->init_from_backup($node_master, $backup_name,
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has_streaming => 1);
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$node_standby->start;
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# Create some bloom index on master
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$node_master->psql("postgres", "CREATE EXTENSION bloom;");
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$node_master->psql("postgres", "CREATE TABLE tst (i int4, t text);");
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$node_master->psql("postgres",
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"INSERT INTO tst SELECT i%10, substr(md5(i::text), 1, 1) FROM generate_series(1,100000) i;"
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);
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$node_master->psql("postgres",
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"CREATE INDEX bloomidx ON tst USING bloom (i, t) WITH (col1 = 3);");
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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_master->psql("postgres", "DELETE FROM tst WHERE i = $i;");
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test_index_replay("delete $i");
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$node_master->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_master->psql("postgres",
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"INSERT INTO tst SELECT i%10, substr(md5(i::text), 1, 1) 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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