mirror of
https://git.postgresql.org/git/postgresql.git
synced 2025-02-23 19:39:53 +08:00
0ecb87e1fa
a9c70b46 added the statistics view pg_stat_io which contained columns
"io_context" and "io_object". Given that the columns are in the
pg_stat_io view, the "io" prefix is somewhat redundant, so remove it.
The code variables referring to these fields are kept unchanged so as
they can keep their context about I/O.
Bump catalog version.
Author: Melanie Plageman
Reviewed-by: Kyotaro Horiguchi, Fabrízio de Royes Mello
Discussion: https://postgr.es/m/CAAKRu_aAQoJWrvT2BYYQvJChFKra_O-5ra3jhzKJZqWsTR1CPQ@mail.gmail.com
144 lines
6.1 KiB
SQL
144 lines
6.1 KiB
SQL
CREATE TABLE heaptest (a integer, b text);
|
|
REVOKE ALL ON heaptest FROM PUBLIC;
|
|
|
|
-- Check that invalid skip option is rejected
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'rope');
|
|
|
|
-- Check specifying invalid block ranges when verifying an empty table
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 0);
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 5, endblock := 8);
|
|
|
|
-- Check that valid options are not rejected nor corruption reported
|
|
-- for an empty table, and that skip enum-like parameter is case-insensitive
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'none');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-frozen');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-visible');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'None');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'All-Frozen');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'All-Visible');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'NONE');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'ALL-FROZEN');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'ALL-VISIBLE');
|
|
|
|
|
|
-- Add some data so subsequent tests are not entirely trivial
|
|
INSERT INTO heaptest (a, b)
|
|
(SELECT gs, repeat('x', gs)
|
|
FROM generate_series(1,50) gs);
|
|
|
|
-- pg_stat_io test:
|
|
-- verify_heapam always uses a BAS_BULKREAD BufferAccessStrategy, whereas a
|
|
-- sequential scan does so only if the table is large enough when compared to
|
|
-- shared buffers (see initscan()). CREATE DATABASE ... also unconditionally
|
|
-- uses a BAS_BULKREAD strategy, but we have chosen to use a tablespace and
|
|
-- verify_heapam to provide coverage instead of adding another expensive
|
|
-- operation to the main regression test suite.
|
|
--
|
|
-- Create an alternative tablespace and move the heaptest table to it, causing
|
|
-- it to be rewritten and all the blocks to reliably evicted from shared
|
|
-- buffers -- guaranteeing actual reads when we next select from it.
|
|
SET allow_in_place_tablespaces = true;
|
|
CREATE TABLESPACE regress_test_stats_tblspc LOCATION '';
|
|
SELECT sum(reads) AS stats_bulkreads_before
|
|
FROM pg_stat_io WHERE context = 'bulkread' \gset
|
|
ALTER TABLE heaptest SET TABLESPACE regress_test_stats_tblspc;
|
|
|
|
-- Check that valid options are not rejected nor corruption reported
|
|
-- for a non-empty table
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'none');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-frozen');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-visible');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 0);
|
|
|
|
-- verify_heapam should have read in the page written out by
|
|
-- ALTER TABLE ... SET TABLESPACE ...
|
|
-- causing an additional bulkread, which should be reflected in pg_stat_io.
|
|
SELECT pg_stat_force_next_flush();
|
|
SELECT sum(reads) AS stats_bulkreads_after
|
|
FROM pg_stat_io WHERE context = 'bulkread' \gset
|
|
SELECT :stats_bulkreads_after > :stats_bulkreads_before;
|
|
|
|
CREATE ROLE regress_heaptest_role;
|
|
|
|
-- verify permissions are checked (error due to function not callable)
|
|
SET ROLE regress_heaptest_role;
|
|
SELECT * FROM verify_heapam(relation := 'heaptest');
|
|
RESET ROLE;
|
|
|
|
GRANT EXECUTE ON FUNCTION verify_heapam(regclass, boolean, boolean, text, bigint, bigint) TO regress_heaptest_role;
|
|
|
|
-- verify permissions are now sufficient
|
|
SET ROLE regress_heaptest_role;
|
|
SELECT * FROM verify_heapam(relation := 'heaptest');
|
|
RESET ROLE;
|
|
|
|
-- Check specifying invalid block ranges when verifying a non-empty table.
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 10000);
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 10000, endblock := 11000);
|
|
|
|
-- Vacuum freeze to change the xids encountered in subsequent tests
|
|
VACUUM (FREEZE, DISABLE_PAGE_SKIPPING) heaptest;
|
|
|
|
-- Check that valid options are not rejected nor corruption reported
|
|
-- for a non-empty frozen table
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'none');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-frozen');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-visible');
|
|
SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 0);
|
|
|
|
-- Check that partitioned tables (the parent ones) which don't have visibility
|
|
-- maps are rejected
|
|
CREATE TABLE test_partitioned (a int, b text default repeat('x', 5000))
|
|
PARTITION BY list (a);
|
|
SELECT * FROM verify_heapam('test_partitioned',
|
|
startblock := NULL,
|
|
endblock := NULL);
|
|
|
|
-- Check that valid options are not rejected nor corruption reported
|
|
-- for an empty partition table (the child one)
|
|
CREATE TABLE test_partition partition OF test_partitioned FOR VALUES IN (1);
|
|
SELECT * FROM verify_heapam('test_partition',
|
|
startblock := NULL,
|
|
endblock := NULL);
|
|
|
|
-- Check that valid options are not rejected nor corruption reported
|
|
-- for a non-empty partition table (the child one)
|
|
INSERT INTO test_partitioned (a) (SELECT 1 FROM generate_series(1,1000) gs);
|
|
SELECT * FROM verify_heapam('test_partition',
|
|
startblock := NULL,
|
|
endblock := NULL);
|
|
|
|
-- Check that indexes are rejected
|
|
CREATE INDEX test_index ON test_partition (a);
|
|
SELECT * FROM verify_heapam('test_index',
|
|
startblock := NULL,
|
|
endblock := NULL);
|
|
|
|
-- Check that views are rejected
|
|
CREATE VIEW test_view AS SELECT 1;
|
|
SELECT * FROM verify_heapam('test_view',
|
|
startblock := NULL,
|
|
endblock := NULL);
|
|
|
|
-- Check that sequences are rejected
|
|
CREATE SEQUENCE test_sequence;
|
|
SELECT * FROM verify_heapam('test_sequence',
|
|
startblock := NULL,
|
|
endblock := NULL);
|
|
|
|
-- Check that foreign tables are rejected
|
|
CREATE FOREIGN DATA WRAPPER dummy;
|
|
CREATE SERVER dummy_server FOREIGN DATA WRAPPER dummy;
|
|
CREATE FOREIGN TABLE test_foreign_table () SERVER dummy_server;
|
|
SELECT * FROM verify_heapam('test_foreign_table',
|
|
startblock := NULL,
|
|
endblock := NULL);
|
|
|
|
-- cleanup
|
|
DROP TABLE heaptest;
|
|
DROP TABLESPACE regress_test_stats_tblspc;
|
|
DROP TABLE test_partition;
|
|
DROP TABLE test_partitioned;
|
|
DROP OWNED BY regress_heaptest_role; -- permissions
|
|
DROP ROLE regress_heaptest_role;
|