# Create a tablespace for testing.
my $tbspace_path = $node->basedir . '/regress_reindex_tbspace';
mkdir $tbspace_path or die "cannot create directory $tbspace_path";
my $tbspace_name = 'reindex_tbspace';
$node->safe_psql('postgres', "CREATE TABLESPACE $tbspace_name LOCATION '$tbspace_path';");
# Use text as data type to get a toast table.
$node->safe_psql('postgres', 'CREATE TABLE test1 (a text); CREATE INDEX test1x ON test1 (a);'); # Collect toast table and index names of this relation, for later use.
my $toast_table = $node->safe_psql('postgres', "SELECT reltoastrelid::regclass FROM pg_class WHERE oid = 'test1'::regclass;"
);
my $toast_index = $node->safe_psql('postgres', "SELECT indexrelid::regclass FROM pg_index WHERE indrelid = '$toast_table'::regclass;"
);
# Set of SQL queries to cross-check the state of relfilenodes across # REINDEX operations. A set of relfilenodes is saved from the catalogs # and then compared with pg_class.
$node->safe_psql('postgres', 'CREATE TABLE index_relfilenodes (parent regclass, indname text, indoid oid, relfilenode oid);'
); # Save the relfilenode of a set of toast indexes, one from the catalog # pg_constraint and one from the test table.
my $fetch_toast_relfilenodes =
qq{SELECT b.oid::regclass, c.oid::regclass::text, c.oid, c.relfilenode
FROM pg_class a
JOIN pg_class b ON (a.oid = b.reltoastrelid)
JOIN pg_index i on (a.oid = i.indrelid)
JOIN pg_class c on (i.indexrelid = c.oid)
WHERE b.oid IN ('pg_constraint'::regclass, 'test1'::regclass)}; # Same for relfilenodes of normal indexes. This saves the relfilenode # from an index of pg_constraint, and from the index of the test table.
my $fetch_index_relfilenodes =
qq{SELECT i.indrelid, a.oid::regclass::text, a.oid, a.relfilenode
FROM pg_class a
JOIN pg_index i ON (i.indexrelid = a.oid)
WHERE a.relname IN ('pg_constraint_oid_index', 'test1x')};
my $save_relfilenodes = "INSERT INTO index_relfilenodes $fetch_toast_relfilenodes;"
. "INSERT INTO index_relfilenodes $fetch_index_relfilenodes;";
# Query to compare a set of relfilenodes saved with the contents of pg_class. # Note that this does not join using OIDs, as CONCURRENTLY would change them # when reindexing. A filter is applied on the toast index names, even if this # does not make a difference between the catalog and normal ones. The ordering # based on the name is enough to ensure a fixed output, where the name of the # parent table is included to provide more context.
my $compare_relfilenodes = qq(SELECT b.parent::regclass,
regexp_replace(b.indname::text, '(pg_toast.pg_toast_)\\d+(_index)', '\\1<oid>\\2'),
CASE WHEN a.oid = b.indoid THEN 'OID is unchanged'
ELSE 'OID has changed' END,
CASE WHEN a.relfilenode = b.relfilenode THEN 'relfilenode is unchanged'
ELSE 'relfilenode has changed' END
FROM index_relfilenodes b
JOIN pg_class a ON b.indname::text = a.oid::regclass::text
ORDER BY b.parent::text, b.indname::text);
# Save the set of relfilenodes and compare them.
$node->safe_psql('postgres', $save_relfilenodes);
$node->issues_sql_like(
[ 'reindexdb', 'postgres' ],
qr/statement: REINDEX DATABASE postgres;/, 'SQL REINDEX run');
my $relnode_info = $node->safe_psql('postgres', $compare_relfilenodes);
is( $relnode_info,
qq(pg_constraint|pg_constraint_oid_index|OID is unchanged|relfilenode is unchanged
pg_constraint|pg_toast.pg_toast_<oid>_index|OID is unchanged|relfilenode is unchanged
test1|pg_toast.pg_toast_<oid>_index|OID is unchanged|relfilenode has changed
test1|test1x|OID is unchanged|relfilenode has changed), 'relfilenode change after REINDEX DATABASE');
# Re-save and run the second one.
$node->safe_psql('postgres', "TRUNCATE index_relfilenodes; $save_relfilenodes");
$node->issues_sql_like(
[ 'reindexdb', '--system', 'postgres' ],
qr/statement: REINDEX SYSTEM postgres;/, 'reindex system tables');
$relnode_info = $node->safe_psql('postgres', $compare_relfilenodes);
is( $relnode_info,
qq(pg_constraint|pg_constraint_oid_index|OID is unchanged|relfilenode has changed
pg_constraint|pg_toast.pg_toast_<oid>_index|OID is unchanged|relfilenode has changed
test1|pg_toast.pg_toast_<oid>_index|OID is unchanged|relfilenode is unchanged
test1|test1x|OID is unchanged|relfilenode is unchanged), 'relfilenode change after REINDEX SYSTEM');
# Same with --concurrently. # Save the state of the relations and compare them after the DATABASE # rebuild.
$node->safe_psql('postgres', "TRUNCATE index_relfilenodes; $save_relfilenodes");
$node->issues_sql_like(
[ 'reindexdb', '--concurrently', 'postgres' ],
qr/statement: REINDEX DATABASE CONCURRENTLY postgres;/, 'SQL REINDEX CONCURRENTLY run');
$relnode_info = $node->safe_psql('postgres', $compare_relfilenodes);
is( $relnode_info,
qq(pg_constraint|pg_constraint_oid_index|OID is unchanged|relfilenode is unchanged
pg_constraint|pg_toast.pg_toast_<oid>_index|OID is unchanged|relfilenode is unchanged
test1|pg_toast.pg_toast_<oid>_index|OID has changed|relfilenode has changed
test1|test1x|OID has changed|relfilenode has changed), 'OID change after REINDEX DATABASE CONCURRENTLY');
# REINDEX TABLESPACE on toast indexes and tables fails. This is not # part of the main regression test suite as these have unpredictable # names, and CONCURRENTLY cannot be used in transaction blocks, preventing # the use of TRY/CATCH blocks in a custom function to filter error # messages.
$node->command_checks_all(
[ 'reindexdb', '--table' => $toast_table, '--tablespace' => $tbspace_name, 'postgres',
], 1,
[],
[qr/cannot move system relation/], 'reindex toast table with tablespace');
$node->command_checks_all(
[ 'reindexdb', '--concurrently', '--table' => $toast_table, '--tablespace' => $tbspace_name, 'postgres',
], 1,
[],
[qr/cannot move system relation/], 'reindex toast table concurrently with tablespace');
$node->command_checks_all(
[ 'reindexdb', '--index' => $toast_index, '--tablespace' => $tbspace_name, 'postgres',
], 1,
[],
[qr/cannot move system relation/], 'reindex toast index with tablespace');
$node->command_checks_all(
[ 'reindexdb', '--concurrently', '--index' => $toast_index, '--tablespace' => $tbspace_name, 'postgres',
], 1,
[],
[qr/cannot move system relation/], 'reindex toast index concurrently with tablespace');
# connection strings
$node->command_ok([qw(reindexdb --echo --table=pg_am dbname=template1)], 'reindexdb table with connection string');
$node->command_ok(
[qw(reindexdb --echo dbname=template1)], 'reindexdb database with connection string');
$node->command_ok(
[qw(reindexdb --echo --system dbname=template1)], 'reindexdb system with connection string');
# parallel processing
$node->safe_psql( 'postgres', q|
CREATE SCHEMA s1;
CREATE TABLE s1.t1(id integer);
CREATE INDEX ON s1.t1(id);
CREATE INDEX i1 ON s1.t1(id);
CREATE SCHEMA s2;
CREATE TABLE s2.t2(id integer);
CREATE INDEX ON s2.t2(id);
CREATE INDEX i2 ON s2.t2(id);
-- empty schema
CREATE SCHEMA s3;
|);
$node->command_fails(
[ 'reindexdb', '--jobs' => '2', '--system', 'postgres' ], 'parallel reindexdb cannot process system catalogs');
$node->command_ok(
[ 'reindexdb', '--jobs' => '2', '--index' => 's1.i1', '--index' => 's2.i2', '--index' => 's1.t1_id_idx', '--index' => 's2.t2_id_idx', 'postgres',
], 'parallel reindexdb for indices'); # Note that the ordering of the commands is not stable, so the second # command for s2.t2 is not checked after.
$node->issues_sql_like(
[ 'reindexdb', '--jobs' => '2', '--schema' => 's1', '--schema' => 's2', 'postgres',
],
qr/statement:\ REINDEX TABLE s1.t1;/, 'parallel reindexdb for schemas does a per-table REINDEX');
$node->command_ok([ 'reindexdb', '--jobs' => '2', '--schema' => 's3' ], 'parallel reindexdb with empty schema');
$node->command_ok(
[ 'reindexdb', '--jobs' => '2', '--concurrently', '--dbname' => 'postgres',
], 'parallel reindexdb on database, concurrently');
# combinations of objects
$node->issues_sql_like(
[ 'reindexdb', '--system', '--table' => 'test1', 'postgres' ],
qr/statement:\ REINDEX SYSTEM postgres;/, 'specify both --system and --table');
$node->issues_sql_like(
[ 'reindexdb', '--system', '--index' => 'test1x', 'postgres' ],
qr/statement:\ REINDEX INDEX public.test1x;/, 'specify both --system and --index');
$node->issues_sql_like(
[ 'reindexdb', '--system', '--schema' => 'pg_catalog', 'postgres' ],
qr/statement:\ REINDEX SCHEMA pg_catalog;/, 'specify both --system and --schema');
done_testing();
Messung V0.5 in Prozent
¤ Dauer der Verarbeitung: 0.15 Sekunden
(vorverarbeitet am 2026-08-10)
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.