mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-28 02:57:19 +02:00
245 lines
6.7 KiB
Perl
245 lines
6.7 KiB
Perl
|
|
||
|
# Copyright (c) 2023, PostgreSQL Global Development Group
|
||
|
|
||
|
# This regression test checks the behavior of the btree validation in the
|
||
|
# presence of breaking sort order changes.
|
||
|
#
|
||
|
use strict;
|
||
|
use warnings;
|
||
|
use PostgreSQL::Test::Cluster;
|
||
|
use PostgreSQL::Test::Utils;
|
||
|
use Test::More;
|
||
|
|
||
|
my $node = PostgreSQL::Test::Cluster->new('test');
|
||
|
$node->init;
|
||
|
$node->append_conf('postgresql.conf', 'autovacuum = off');
|
||
|
$node->start;
|
||
|
|
||
|
# Create a custom operator class and an index which uses it.
|
||
|
$node->safe_psql(
|
||
|
'postgres', q(
|
||
|
CREATE EXTENSION amcheck;
|
||
|
|
||
|
CREATE FUNCTION ok_cmp (int4, int4)
|
||
|
RETURNS int LANGUAGE sql AS
|
||
|
$$
|
||
|
SELECT
|
||
|
CASE WHEN $1 < $2 THEN -1
|
||
|
WHEN $1 > $2 THEN 1
|
||
|
ELSE 0
|
||
|
END;
|
||
|
$$;
|
||
|
|
||
|
---
|
||
|
--- Check 1: uniqueness violation.
|
||
|
---
|
||
|
CREATE FUNCTION ok_cmp1 (int4, int4)
|
||
|
RETURNS int LANGUAGE sql AS
|
||
|
$$
|
||
|
SELECT ok_cmp($1, $2);
|
||
|
$$;
|
||
|
|
||
|
---
|
||
|
--- Make values 768 and 769 look equal.
|
||
|
---
|
||
|
CREATE FUNCTION bad_cmp1 (int4, int4)
|
||
|
RETURNS int LANGUAGE sql AS
|
||
|
$$
|
||
|
SELECT
|
||
|
CASE WHEN ($1 = 768 AND $2 = 769) OR
|
||
|
($1 = 769 AND $2 = 768) THEN 0
|
||
|
ELSE ok_cmp($1, $2)
|
||
|
END;
|
||
|
$$;
|
||
|
|
||
|
---
|
||
|
--- Check 2: uniqueness violation without deduplication.
|
||
|
---
|
||
|
CREATE FUNCTION ok_cmp2 (int4, int4)
|
||
|
RETURNS int LANGUAGE sql AS
|
||
|
$$
|
||
|
SELECT ok_cmp($1, $2);
|
||
|
$$;
|
||
|
|
||
|
CREATE FUNCTION bad_cmp2 (int4, int4)
|
||
|
RETURNS int LANGUAGE sql AS
|
||
|
$$
|
||
|
SELECT
|
||
|
CASE WHEN $1 = $2 AND $1 = 400 THEN -1
|
||
|
ELSE ok_cmp($1, $2)
|
||
|
END;
|
||
|
$$;
|
||
|
|
||
|
---
|
||
|
--- Check 3: uniqueness violation with deduplication.
|
||
|
---
|
||
|
CREATE FUNCTION ok_cmp3 (int4, int4)
|
||
|
RETURNS int LANGUAGE sql AS
|
||
|
$$
|
||
|
SELECT ok_cmp($1, $2);
|
||
|
$$;
|
||
|
|
||
|
CREATE FUNCTION bad_cmp3 (int4, int4)
|
||
|
RETURNS int LANGUAGE sql AS
|
||
|
$$
|
||
|
SELECT bad_cmp2($1, $2);
|
||
|
$$;
|
||
|
|
||
|
---
|
||
|
--- Create data.
|
||
|
---
|
||
|
CREATE TABLE bttest_unique1 (i int4);
|
||
|
INSERT INTO bttest_unique1
|
||
|
(SELECT * FROM generate_series(1, 1024) gs);
|
||
|
|
||
|
CREATE TABLE bttest_unique2 (i int4);
|
||
|
INSERT INTO bttest_unique2(i)
|
||
|
(SELECT * FROM generate_series(1, 400) gs);
|
||
|
INSERT INTO bttest_unique2
|
||
|
(SELECT * FROM generate_series(400, 1024) gs);
|
||
|
|
||
|
CREATE TABLE bttest_unique3 (i int4);
|
||
|
INSERT INTO bttest_unique3
|
||
|
SELECT * FROM bttest_unique2;
|
||
|
|
||
|
CREATE OPERATOR CLASS int4_custom_ops1 FOR TYPE int4 USING btree AS
|
||
|
OPERATOR 1 < (int4, int4), OPERATOR 2 <= (int4, int4),
|
||
|
OPERATOR 3 = (int4, int4), OPERATOR 4 >= (int4, int4),
|
||
|
OPERATOR 5 > (int4, int4), FUNCTION 1 ok_cmp1(int4, int4);
|
||
|
CREATE OPERATOR CLASS int4_custom_ops2 FOR TYPE int4 USING btree AS
|
||
|
OPERATOR 1 < (int4, int4), OPERATOR 2 <= (int4, int4),
|
||
|
OPERATOR 3 = (int4, int4), OPERATOR 4 >= (int4, int4),
|
||
|
OPERATOR 5 > (int4, int4), FUNCTION 1 bad_cmp2(int4, int4);
|
||
|
CREATE OPERATOR CLASS int4_custom_ops3 FOR TYPE int4 USING btree AS
|
||
|
OPERATOR 1 < (int4, int4), OPERATOR 2 <= (int4, int4),
|
||
|
OPERATOR 3 = (int4, int4), OPERATOR 4 >= (int4, int4),
|
||
|
OPERATOR 5 > (int4, int4), FUNCTION 1 bad_cmp3(int4, int4);
|
||
|
|
||
|
CREATE UNIQUE INDEX bttest_unique_idx1
|
||
|
ON bttest_unique1
|
||
|
USING btree (i int4_custom_ops1)
|
||
|
WITH (deduplicate_items = off);
|
||
|
CREATE UNIQUE INDEX bttest_unique_idx2
|
||
|
ON bttest_unique2
|
||
|
USING btree (i int4_custom_ops2)
|
||
|
WITH (deduplicate_items = off);
|
||
|
CREATE UNIQUE INDEX bttest_unique_idx3
|
||
|
ON bttest_unique3
|
||
|
USING btree (i int4_custom_ops3)
|
||
|
WITH (deduplicate_items = on);
|
||
|
));
|
||
|
|
||
|
my ($result, $stdout, $stderr);
|
||
|
|
||
|
#
|
||
|
# Test 1.
|
||
|
# - insert seq values
|
||
|
# - create unique index
|
||
|
# - break cmp function
|
||
|
# - amcheck finds the uniqueness violation
|
||
|
#
|
||
|
|
||
|
# We have not yet broken the index, so we should get no corruption
|
||
|
$result = $node->safe_psql(
|
||
|
'postgres', q(
|
||
|
SELECT bt_index_check('bttest_unique_idx1', true, true);
|
||
|
));
|
||
|
is($result, '', 'run amcheck on non-broken bttest_unique_idx1');
|
||
|
|
||
|
# Change the operator class to use a function which considers certain different
|
||
|
# values to be equal.
|
||
|
$node->safe_psql(
|
||
|
'postgres', q(
|
||
|
UPDATE pg_catalog.pg_amproc SET
|
||
|
amproc = 'bad_cmp1'::regproc
|
||
|
WHERE amproc = 'ok_cmp1'::regproc;
|
||
|
));
|
||
|
|
||
|
($result, $stdout, $stderr) = $node->psql(
|
||
|
'postgres', q(
|
||
|
SELECT bt_index_check('bttest_unique_idx1', true, true);
|
||
|
));
|
||
|
ok( $stderr =~ /index uniqueness is violated for index "bttest_unique_idx1"/,
|
||
|
'detected uniqueness violation for index "bttest_unique_idx1"');
|
||
|
|
||
|
#
|
||
|
# Test 2.
|
||
|
# - break cmp function
|
||
|
# - insert seq values with duplicates
|
||
|
# - create unique index
|
||
|
# - make cmp function correct
|
||
|
# - amcheck finds the uniqueness violation
|
||
|
#
|
||
|
|
||
|
# Due to bad cmp function we expect amcheck to detect item order violation,
|
||
|
# but no uniqueness violation.
|
||
|
($result, $stdout, $stderr) = $node->psql(
|
||
|
'postgres', q(
|
||
|
SELECT bt_index_check('bttest_unique_idx2', true, true);
|
||
|
));
|
||
|
ok( $stderr =~ /item order invariant violated for index "bttest_unique_idx2"/,
|
||
|
'detected item order invariant violation for index "bttest_unique_idx2"');
|
||
|
|
||
|
$node->safe_psql(
|
||
|
'postgres', q(
|
||
|
UPDATE pg_catalog.pg_amproc SET
|
||
|
amproc = 'ok_cmp2'::regproc
|
||
|
WHERE amproc = 'bad_cmp2'::regproc;
|
||
|
));
|
||
|
|
||
|
($result, $stdout, $stderr) = $node->psql(
|
||
|
'postgres', q(
|
||
|
SELECT bt_index_check('bttest_unique_idx2', true, true);
|
||
|
));
|
||
|
ok( $stderr =~ /index uniqueness is violated for index "bttest_unique_idx2"/,
|
||
|
'detected uniqueness violation for index "bttest_unique_idx2"');
|
||
|
|
||
|
#
|
||
|
# Test 3.
|
||
|
# - same as Test 2, but with index deduplication
|
||
|
#
|
||
|
# Then uniqueness violation is detected between different posting list
|
||
|
# entries inside one index entry.
|
||
|
#
|
||
|
|
||
|
# Due to bad cmp function we expect amcheck to detect item order violation,
|
||
|
# but no uniqueness violation.
|
||
|
($result, $stdout, $stderr) = $node->psql(
|
||
|
'postgres', q(
|
||
|
SELECT bt_index_check('bttest_unique_idx3', true, true);
|
||
|
));
|
||
|
ok( $stderr =~ /item order invariant violated for index "bttest_unique_idx3"/,
|
||
|
'detected item order invariant violation for index "bttest_unique_idx3"');
|
||
|
|
||
|
# For unique index deduplication is possible only for same values, but
|
||
|
# with different visibility.
|
||
|
$node->safe_psql(
|
||
|
'postgres', q(
|
||
|
DELETE FROM bttest_unique3 WHERE 380 <= i AND i <= 420;
|
||
|
INSERT INTO bttest_unique3 (SELECT * FROM generate_series(380, 420));
|
||
|
INSERT INTO bttest_unique3 VALUES (400);
|
||
|
DELETE FROM bttest_unique3 WHERE 380 <= i AND i <= 420;
|
||
|
INSERT INTO bttest_unique3 (SELECT * FROM generate_series(380, 420));
|
||
|
INSERT INTO bttest_unique3 VALUES (400);
|
||
|
DELETE FROM bttest_unique3 WHERE 380 <= i AND i <= 420;
|
||
|
INSERT INTO bttest_unique3 (SELECT * FROM generate_series(380, 420));
|
||
|
INSERT INTO bttest_unique3 VALUES (400);
|
||
|
));
|
||
|
|
||
|
$node->safe_psql(
|
||
|
'postgres', q(
|
||
|
UPDATE pg_catalog.pg_amproc SET
|
||
|
amproc = 'ok_cmp3'::regproc
|
||
|
WHERE amproc = 'bad_cmp3'::regproc;
|
||
|
));
|
||
|
|
||
|
($result, $stdout, $stderr) = $node->psql(
|
||
|
'postgres', q(
|
||
|
SELECT bt_index_check('bttest_unique_idx3', true, true);
|
||
|
));
|
||
|
ok( $stderr =~ /index uniqueness is violated for index "bttest_unique_idx3"/,
|
||
|
'detected uniqueness violation for index "bttest_unique_idx3"');
|
||
|
|
||
|
$node->stop;
|
||
|
done_testing();
|