65 lines
1.5 KiB
Perl
65 lines
1.5 KiB
Perl
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# Copyright (c) 2021-2023, PostgreSQL Global Development Group
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# Test CREATE INDEX CONCURRENTLY with concurrent modifications
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use strict;
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use warnings;
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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, $result);
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#
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# Test set-up
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#
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$node = PostgreSQL::Test::Cluster->new('CIC_test');
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$node->init;
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$node->append_conf('postgresql.conf',
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'lock_timeout = ' . (1000 * $PostgreSQL::Test::Utils::timeout_default));
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$node->start;
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$node->safe_psql('postgres', q(CREATE EXTENSION amcheck));
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$node->safe_psql('postgres', q(CREATE TABLE tbl(i int)));
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$node->safe_psql('postgres', q(CREATE INDEX idx ON tbl(i)));
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#
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# Stress CIC with pgbench.
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#
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# pgbench might try to launch more than one instance of the CIC
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# transaction concurrently. That would deadlock, so use an advisory
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# lock to ensure only one CIC runs at a time.
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#
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$node->pgbench(
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'--no-vacuum --client=5 --transactions=100',
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0,
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[qr{actually processed}],
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[qr{^$}],
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'concurrent INSERTs and CIC',
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{
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'002_pgbench_concurrent_transaction' => q(
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BEGIN;
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INSERT INTO tbl VALUES(0);
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COMMIT;
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),
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'002_pgbench_concurrent_transaction_savepoints' => q(
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BEGIN;
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SAVEPOINT s1;
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INSERT INTO tbl VALUES(0);
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COMMIT;
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),
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'002_pgbench_concurrent_cic' => q(
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SELECT pg_try_advisory_lock(42)::integer AS gotlock \gset
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\if :gotlock
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DROP INDEX CONCURRENTLY idx;
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CREATE INDEX CONCURRENTLY idx ON tbl(i);
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SELECT bt_index_check('idx',true);
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SELECT pg_advisory_unlock(42);
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\endif
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)
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});
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$node->stop;
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done_testing();
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