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806091c96f
Commit f82ec32ac30ae7e3ec7c84067192535b2ff8ec0e renamed the pg_xlog directory to pg_wal. To make things consistent, and because "xlog" is terrible terminology for either "transaction log" or "write-ahead log" rename all SQL-callable functions that contain "xlog" in the name to instead contain "wal". (Note that this may pose an upgrade hazard for some users.) Similarly, rename the xlog_position argument of the functions that create slots to be called wal_position. Discussion: https://www.postgresql.org/message-id/CA+Tgmob=YmA=H3DbW1YuOXnFVgBheRmyDkWcD9M8f=5bGWYEoQ@mail.gmail.com
66 lines
2.1 KiB
Perl
66 lines
2.1 KiB
Perl
# Test master/standby scenario where the track_commit_timestamp GUC is
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# repeatedly toggled on and off.
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use strict;
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use warnings;
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use TestLib;
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use Test::More tests => 4;
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use PostgresNode;
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my $bkplabel = 'backup';
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my $master = get_new_node('master');
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$master->init(allows_streaming => 1);
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$master->append_conf(
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'postgresql.conf', qq{
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track_commit_timestamp = on
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max_wal_senders = 5
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});
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$master->start;
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$master->backup($bkplabel);
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my $standby = get_new_node('standby');
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$standby->init_from_backup($master, $bkplabel, has_streaming => 1);
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$standby->start;
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for my $i (1 .. 10)
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{
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$master->safe_psql('postgres', "create table t$i()");
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}
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$master->append_conf('postgresql.conf', 'track_commit_timestamp = off');
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$master->restart;
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$master->safe_psql('postgres', 'checkpoint');
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my $master_lsn =
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$master->safe_psql('postgres', 'select pg_current_wal_location()');
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$standby->poll_query_until('postgres',
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qq{SELECT '$master_lsn'::pg_lsn <= pg_last_wal_replay_location()})
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or die "slave never caught up";
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$standby->safe_psql('postgres', 'checkpoint');
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$standby->restart;
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my ($psql_ret, $standby_ts_stdout, $standby_ts_stderr) = $standby->psql(
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'postgres',
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qq{SELECT ts.* FROM pg_class, pg_xact_commit_timestamp(xmin) AS ts WHERE relname = 't10'}
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);
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is($psql_ret, 3, 'expect error when getting commit timestamp after restart');
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is($standby_ts_stdout, '', "standby does not return a value after restart");
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like(
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$standby_ts_stderr,
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qr/could not get commit timestamp data/,
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'expected err msg after restart');
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$master->append_conf('postgresql.conf', 'track_commit_timestamp = on');
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$master->restart;
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$master->append_conf('postgresql.conf', 'track_commit_timestamp = off');
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$master->restart;
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system_or_bail('pg_ctl', '-D', $standby->data_dir, 'promote');
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$standby->poll_query_until('postgres', "SELECT pg_is_in_recovery() <> true");
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$standby->safe_psql('postgres', "create table t11()");
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my $standby_ts = $standby->safe_psql('postgres',
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qq{SELECT ts.* FROM pg_class, pg_xact_commit_timestamp(xmin) AS ts WHERE relname = 't11'}
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);
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isnt($standby_ts, '',
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"standby gives valid value ($standby_ts) after promotion");
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