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c2dc1a7976
By default VACUUM will skip pages that it can't immediately get exclusive access to, which means that even activities as harmless and unpredictable as checkpoint buffer writes might prevent a page from being processed. Ordinarily this is no big deal, but we have a small number of test cases that examine the results of VACUUM's processing and therefore will fail if the page of interest is skipped. This seems to be the explanation for some rare buildfarm failures. To fix, add the DISABLE_PAGE_SKIPPING option to the VACUUM commands in tests where this could be an issue. In passing, remove a duplicated query in pageinspect/sql/page.sql. Back-patch as necessary (some of these cases are as old as v10). Discussion: https://postgr.es/m/413923.1611006484@sss.pgh.pa.us
117 lines
4.8 KiB
SQL
117 lines
4.8 KiB
SQL
CREATE TABLE heaptest (a integer, b text);
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REVOKE ALL ON heaptest FROM PUBLIC;
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-- Check that invalid skip option is rejected
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'rope');
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-- Check specifying invalid block ranges when verifying an empty table
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SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 0);
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SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 5, endblock := 8);
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-- Check that valid options are not rejected nor corruption reported
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-- for an empty table, and that skip enum-like parameter is case-insensitive
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'none');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-frozen');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-visible');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'None');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'All-Frozen');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'All-Visible');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'NONE');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'ALL-FROZEN');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'ALL-VISIBLE');
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-- Add some data so subsequent tests are not entirely trivial
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INSERT INTO heaptest (a, b)
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(SELECT gs, repeat('x', gs)
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FROM generate_series(1,50) gs);
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-- Check that valid options are not rejected nor corruption reported
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-- for a non-empty table
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'none');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-frozen');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-visible');
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SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 0);
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CREATE ROLE regress_heaptest_role;
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-- verify permissions are checked (error due to function not callable)
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SET ROLE regress_heaptest_role;
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SELECT * FROM verify_heapam(relation := 'heaptest');
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RESET ROLE;
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GRANT EXECUTE ON FUNCTION verify_heapam(regclass, boolean, boolean, text, bigint, bigint) TO regress_heaptest_role;
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-- verify permissions are now sufficient
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SET ROLE regress_heaptest_role;
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SELECT * FROM verify_heapam(relation := 'heaptest');
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RESET ROLE;
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-- Check specifying invalid block ranges when verifying a non-empty table.
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SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 10000);
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SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 10000, endblock := 11000);
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-- Vacuum freeze to change the xids encountered in subsequent tests
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VACUUM (FREEZE, DISABLE_PAGE_SKIPPING) heaptest;
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-- Check that valid options are not rejected nor corruption reported
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-- for a non-empty frozen table
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'none');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-frozen');
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SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-visible');
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SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 0);
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-- Check that partitioned tables (the parent ones) which don't have visibility
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-- maps are rejected
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CREATE TABLE test_partitioned (a int, b text default repeat('x', 5000))
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PARTITION BY list (a);
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SELECT * FROM verify_heapam('test_partitioned',
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startblock := NULL,
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endblock := NULL);
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-- Check that valid options are not rejected nor corruption reported
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-- for an empty partition table (the child one)
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CREATE TABLE test_partition partition OF test_partitioned FOR VALUES IN (1);
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SELECT * FROM verify_heapam('test_partition',
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startblock := NULL,
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endblock := NULL);
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-- Check that valid options are not rejected nor corruption reported
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-- for a non-empty partition table (the child one)
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INSERT INTO test_partitioned (a) (SELECT 1 FROM generate_series(1,1000) gs);
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SELECT * FROM verify_heapam('test_partition',
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startblock := NULL,
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endblock := NULL);
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-- Check that indexes are rejected
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CREATE INDEX test_index ON test_partition (a);
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SELECT * FROM verify_heapam('test_index',
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startblock := NULL,
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endblock := NULL);
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-- Check that views are rejected
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CREATE VIEW test_view AS SELECT 1;
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SELECT * FROM verify_heapam('test_view',
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startblock := NULL,
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endblock := NULL);
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-- Check that sequences are rejected
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CREATE SEQUENCE test_sequence;
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SELECT * FROM verify_heapam('test_sequence',
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startblock := NULL,
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endblock := NULL);
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-- Check that foreign tables are rejected
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CREATE FOREIGN DATA WRAPPER dummy;
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CREATE SERVER dummy_server FOREIGN DATA WRAPPER dummy;
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CREATE FOREIGN TABLE test_foreign_table () SERVER dummy_server;
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SELECT * FROM verify_heapam('test_foreign_table',
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startblock := NULL,
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endblock := NULL);
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-- cleanup
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DROP TABLE heaptest;
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DROP TABLE test_partition;
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DROP TABLE test_partitioned;
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DROP OWNED BY regress_heaptest_role; -- permissions
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DROP ROLE regress_heaptest_role;
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