280 lines
9.3 KiB
Plaintext
280 lines
9.3 KiB
Plaintext
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CREATE EXTENSION pg_visibility;
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--
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-- recently-dropped table
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--
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\set VERBOSITY sqlstate
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BEGIN;
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CREATE TABLE droppedtest (c int);
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SELECT 'droppedtest'::regclass::oid AS oid \gset
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SAVEPOINT q; DROP TABLE droppedtest; RELEASE q;
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SAVEPOINT q; SELECT * FROM pg_visibility_map(:oid); ROLLBACK TO q;
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ERROR: XX000
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-- ERROR: could not open relation with OID 16xxx
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SAVEPOINT q; SELECT 1; ROLLBACK TO q;
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?column?
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----------
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1
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(1 row)
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SAVEPOINT q; SELECT 1; ROLLBACK TO q;
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?column?
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----------
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1
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(1 row)
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SELECT pg_relation_size(:oid), pg_relation_filepath(:oid),
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has_table_privilege(:oid, 'SELECT');
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pg_relation_size | pg_relation_filepath | has_table_privilege
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------------------+----------------------+---------------------
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(1 row)
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SELECT * FROM pg_visibility_map(:oid);
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ERROR: XX000
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-- ERROR: could not open relation with OID 16xxx
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ROLLBACK;
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\set VERBOSITY default
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--
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-- check that using the module's functions with unsupported relations will fail
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--
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-- partitioned tables (the parent ones) don't have visibility maps
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create table test_partitioned (a int) partition by list (a);
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-- these should all fail
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select pg_visibility('test_partitioned', 0);
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ERROR: relation "test_partitioned" is of wrong relation kind
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DETAIL: This operation is not supported for partitioned tables.
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select pg_visibility_map('test_partitioned');
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ERROR: relation "test_partitioned" is of wrong relation kind
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DETAIL: This operation is not supported for partitioned tables.
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select pg_visibility_map_summary('test_partitioned');
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ERROR: relation "test_partitioned" is of wrong relation kind
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DETAIL: This operation is not supported for partitioned tables.
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select pg_check_frozen('test_partitioned');
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ERROR: relation "test_partitioned" is of wrong relation kind
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DETAIL: This operation is not supported for partitioned tables.
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select pg_truncate_visibility_map('test_partitioned');
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ERROR: relation "test_partitioned" is of wrong relation kind
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DETAIL: This operation is not supported for partitioned tables.
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create table test_partition partition of test_partitioned for values in (1);
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create index test_index on test_partition (a);
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-- indexes do not, so these all fail
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select pg_visibility('test_index', 0);
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ERROR: relation "test_index" is of wrong relation kind
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DETAIL: This operation is not supported for indexes.
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select pg_visibility_map('test_index');
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ERROR: relation "test_index" is of wrong relation kind
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DETAIL: This operation is not supported for indexes.
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select pg_visibility_map_summary('test_index');
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ERROR: relation "test_index" is of wrong relation kind
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DETAIL: This operation is not supported for indexes.
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select pg_check_frozen('test_index');
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ERROR: relation "test_index" is of wrong relation kind
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DETAIL: This operation is not supported for indexes.
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select pg_truncate_visibility_map('test_index');
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ERROR: relation "test_index" is of wrong relation kind
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DETAIL: This operation is not supported for indexes.
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create view test_view as select 1;
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-- views do not have VMs, so these all fail
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select pg_visibility('test_view', 0);
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ERROR: relation "test_view" is of wrong relation kind
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DETAIL: This operation is not supported for views.
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select pg_visibility_map('test_view');
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ERROR: relation "test_view" is of wrong relation kind
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DETAIL: This operation is not supported for views.
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select pg_visibility_map_summary('test_view');
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ERROR: relation "test_view" is of wrong relation kind
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DETAIL: This operation is not supported for views.
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select pg_check_frozen('test_view');
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ERROR: relation "test_view" is of wrong relation kind
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DETAIL: This operation is not supported for views.
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select pg_truncate_visibility_map('test_view');
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ERROR: relation "test_view" is of wrong relation kind
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DETAIL: This operation is not supported for views.
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create sequence test_sequence;
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-- sequences do not have VMs, so these all fail
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select pg_visibility('test_sequence', 0);
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ERROR: relation "test_sequence" is of wrong relation kind
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DETAIL: This operation is not supported for sequences.
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select pg_visibility_map('test_sequence');
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ERROR: relation "test_sequence" is of wrong relation kind
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DETAIL: This operation is not supported for sequences.
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select pg_visibility_map_summary('test_sequence');
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ERROR: relation "test_sequence" is of wrong relation kind
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DETAIL: This operation is not supported for sequences.
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select pg_check_frozen('test_sequence');
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ERROR: relation "test_sequence" is of wrong relation kind
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DETAIL: This operation is not supported for sequences.
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select pg_truncate_visibility_map('test_sequence');
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ERROR: relation "test_sequence" is of wrong relation kind
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DETAIL: This operation is not supported for sequences.
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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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-- foreign tables do not have VMs, so these all fail
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select pg_visibility('test_foreign_table', 0);
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ERROR: relation "test_foreign_table" is of wrong relation kind
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DETAIL: This operation is not supported for foreign tables.
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select pg_visibility_map('test_foreign_table');
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ERROR: relation "test_foreign_table" is of wrong relation kind
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DETAIL: This operation is not supported for foreign tables.
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select pg_visibility_map_summary('test_foreign_table');
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ERROR: relation "test_foreign_table" is of wrong relation kind
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DETAIL: This operation is not supported for foreign tables.
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select pg_check_frozen('test_foreign_table');
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ERROR: relation "test_foreign_table" is of wrong relation kind
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DETAIL: This operation is not supported for foreign tables.
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select pg_truncate_visibility_map('test_foreign_table');
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ERROR: relation "test_foreign_table" is of wrong relation kind
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DETAIL: This operation is not supported for foreign tables.
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-- check some of the allowed relkinds
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create table regular_table (a int, b text);
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alter table regular_table alter column b set storage external;
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insert into regular_table values (1, repeat('one', 1000)), (2, repeat('two', 1000));
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vacuum (disable_page_skipping) regular_table;
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select count(*) > 0 from pg_visibility('regular_table');
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?column?
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----------
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t
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(1 row)
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select count(*) > 0 from pg_visibility((select reltoastrelid from pg_class where relname = 'regular_table'));
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?column?
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----------
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t
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(1 row)
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truncate regular_table;
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select count(*) > 0 from pg_visibility('regular_table');
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?column?
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----------
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f
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(1 row)
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select count(*) > 0 from pg_visibility((select reltoastrelid from pg_class where relname = 'regular_table'));
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?column?
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----------
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f
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(1 row)
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create materialized view matview_visibility_test as select * from regular_table;
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vacuum (disable_page_skipping) matview_visibility_test;
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select count(*) > 0 from pg_visibility('matview_visibility_test');
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?column?
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----------
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f
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(1 row)
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insert into regular_table values (1), (2);
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refresh materialized view matview_visibility_test;
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select count(*) > 0 from pg_visibility('matview_visibility_test');
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?column?
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----------
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t
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(1 row)
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-- regular tables which are part of a partition *do* have visibility maps
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insert into test_partition values (1);
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vacuum (disable_page_skipping) test_partition;
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select count(*) > 0 from pg_visibility('test_partition', 0);
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?column?
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----------
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t
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(1 row)
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select count(*) > 0 from pg_visibility_map('test_partition');
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?column?
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----------
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t
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(1 row)
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select count(*) > 0 from pg_visibility_map_summary('test_partition');
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?column?
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----------
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t
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(1 row)
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select * from pg_check_frozen('test_partition'); -- hopefully none
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t_ctid
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--------
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(0 rows)
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select pg_truncate_visibility_map('test_partition');
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pg_truncate_visibility_map
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----------------------------
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(1 row)
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-- test copy freeze
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create table copyfreeze (a int, b char(1500));
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-- load all rows via COPY FREEZE and ensure that all pages are set all-visible
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-- and all-frozen.
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begin;
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truncate copyfreeze;
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copy copyfreeze from stdin freeze;
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commit;
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select * from pg_visibility_map('copyfreeze');
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blkno | all_visible | all_frozen
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-------+-------------+------------
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0 | t | t
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1 | t | t
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2 | t | t
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(3 rows)
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select * from pg_check_frozen('copyfreeze');
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t_ctid
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--------
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(0 rows)
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-- load half the rows via regular COPY and rest via COPY FREEZE. The pages
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-- which are touched by regular COPY must not be set all-visible/all-frozen. On
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-- the other hand, pages allocated by COPY FREEZE should be marked
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-- all-frozen/all-visible.
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begin;
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truncate copyfreeze;
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copy copyfreeze from stdin;
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copy copyfreeze from stdin freeze;
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commit;
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select * from pg_visibility_map('copyfreeze');
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blkno | all_visible | all_frozen
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-------+-------------+------------
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0 | f | f
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1 | f | f
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2 | t | t
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(3 rows)
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select * from pg_check_frozen('copyfreeze');
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t_ctid
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--------
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(0 rows)
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-- Try a mix of regular COPY and COPY FREEZE.
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begin;
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truncate copyfreeze;
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copy copyfreeze from stdin freeze;
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copy copyfreeze from stdin;
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copy copyfreeze from stdin freeze;
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commit;
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select * from pg_visibility_map('copyfreeze');
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blkno | all_visible | all_frozen
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-------+-------------+------------
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0 | t | t
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1 | f | f
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2 | t | t
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(3 rows)
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select * from pg_check_frozen('copyfreeze');
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t_ctid
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--------
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(0 rows)
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-- cleanup
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drop table test_partitioned;
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drop view test_view;
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drop sequence test_sequence;
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drop foreign table test_foreign_table;
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drop server dummy_server;
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drop foreign data wrapper dummy;
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drop materialized view matview_visibility_test;
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drop table regular_table;
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drop table copyfreeze;
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