Adding upstream version 15.5.upstream/15.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 279 insertions, 0 deletions

diff --git a/contrib/pg_visibility/expected/pg_visibility.out b/contrib/pg_visibility/expected/pg_visibility.out
new file mode 100644
index 0000000..9de54db
--- /dev/null
+++ b/contrib/pg_visibility/expected/pg_visibility.out
@@ -0,0 +1,279 @@
+CREATE EXTENSION pg_visibility;
+--
+-- recently-dropped table
+--
+\set VERBOSITY sqlstate
+BEGIN;
+CREATE TABLE droppedtest (c int);
+SELECT 'droppedtest'::regclass::oid AS oid \gset
+SAVEPOINT q; DROP TABLE droppedtest; RELEASE q;
+SAVEPOINT q; SELECT * FROM pg_visibility_map(:oid); ROLLBACK TO q;
+ERROR:  XX000
+-- ERROR:  could not open relation with OID 16xxx
+SAVEPOINT q; SELECT 1; ROLLBACK TO q;
+ ?column? 
+----------
+        1
+(1 row)
+
+SAVEPOINT q; SELECT 1; ROLLBACK TO q;
+ ?column? 
+----------
+        1
+(1 row)
+
+SELECT pg_relation_size(:oid), pg_relation_filepath(:oid),
+  has_table_privilege(:oid, 'SELECT');
+ pg_relation_size | pg_relation_filepath | has_table_privilege 
+------------------+----------------------+---------------------
+                  |                      | 
+(1 row)
+
+SELECT * FROM pg_visibility_map(:oid);
+ERROR:  XX000
+-- ERROR:  could not open relation with OID 16xxx
+ROLLBACK;
+\set VERBOSITY default
+--
+-- check that using the module's functions with unsupported relations will fail
+--
+-- partitioned tables (the parent ones) don't have visibility maps
+create table test_partitioned (a int) partition by list (a);
+-- these should all fail
+select pg_visibility('test_partitioned', 0);
+ERROR:  relation "test_partitioned" is of wrong relation kind
+DETAIL:  This operation is not supported for partitioned tables.
+select pg_visibility_map('test_partitioned');
+ERROR:  relation "test_partitioned" is of wrong relation kind
+DETAIL:  This operation is not supported for partitioned tables.
+select pg_visibility_map_summary('test_partitioned');
+ERROR:  relation "test_partitioned" is of wrong relation kind
+DETAIL:  This operation is not supported for partitioned tables.
+select pg_check_frozen('test_partitioned');
+ERROR:  relation "test_partitioned" is of wrong relation kind
+DETAIL:  This operation is not supported for partitioned tables.
+select pg_truncate_visibility_map('test_partitioned');
+ERROR:  relation "test_partitioned" is of wrong relation kind
+DETAIL:  This operation is not supported for partitioned tables.
+create table test_partition partition of test_partitioned for values in (1);
+create index test_index on test_partition (a);
+-- indexes do not, so these all fail
+select pg_visibility('test_index', 0);
+ERROR:  relation "test_index" is of wrong relation kind
+DETAIL:  This operation is not supported for indexes.
+select pg_visibility_map('test_index');
+ERROR:  relation "test_index" is of wrong relation kind
+DETAIL:  This operation is not supported for indexes.
+select pg_visibility_map_summary('test_index');
+ERROR:  relation "test_index" is of wrong relation kind
+DETAIL:  This operation is not supported for indexes.
+select pg_check_frozen('test_index');
+ERROR:  relation "test_index" is of wrong relation kind
+DETAIL:  This operation is not supported for indexes.
+select pg_truncate_visibility_map('test_index');
+ERROR:  relation "test_index" is of wrong relation kind
+DETAIL:  This operation is not supported for indexes.
+create view test_view as select 1;
+-- views do not have VMs, so these all fail
+select pg_visibility('test_view', 0);
+ERROR:  relation "test_view" is of wrong relation kind
+DETAIL:  This operation is not supported for views.
+select pg_visibility_map('test_view');
+ERROR:  relation "test_view" is of wrong relation kind
+DETAIL:  This operation is not supported for views.
+select pg_visibility_map_summary('test_view');
+ERROR:  relation "test_view" is of wrong relation kind
+DETAIL:  This operation is not supported for views.
+select pg_check_frozen('test_view');
+ERROR:  relation "test_view" is of wrong relation kind
+DETAIL:  This operation is not supported for views.
+select pg_truncate_visibility_map('test_view');
+ERROR:  relation "test_view" is of wrong relation kind
+DETAIL:  This operation is not supported for views.
+create sequence test_sequence;
+-- sequences do not have VMs, so these all fail
+select pg_visibility('test_sequence', 0);
+ERROR:  relation "test_sequence" is of wrong relation kind
+DETAIL:  This operation is not supported for sequences.
+select pg_visibility_map('test_sequence');
+ERROR:  relation "test_sequence" is of wrong relation kind
+DETAIL:  This operation is not supported for sequences.
+select pg_visibility_map_summary('test_sequence');
+ERROR:  relation "test_sequence" is of wrong relation kind
+DETAIL:  This operation is not supported for sequences.
+select pg_check_frozen('test_sequence');
+ERROR:  relation "test_sequence" is of wrong relation kind
+DETAIL:  This operation is not supported for sequences.
+select pg_truncate_visibility_map('test_sequence');
+ERROR:  relation "test_sequence" is of wrong relation kind
+DETAIL:  This operation is not supported for sequences.
+create foreign data wrapper dummy;
+create server dummy_server foreign data wrapper dummy;
+create foreign table test_foreign_table () server dummy_server;
+-- foreign tables do not have VMs, so these all fail
+select pg_visibility('test_foreign_table', 0);
+ERROR:  relation "test_foreign_table" is of wrong relation kind
+DETAIL:  This operation is not supported for foreign tables.
+select pg_visibility_map('test_foreign_table');
+ERROR:  relation "test_foreign_table" is of wrong relation kind
+DETAIL:  This operation is not supported for foreign tables.
+select pg_visibility_map_summary('test_foreign_table');
+ERROR:  relation "test_foreign_table" is of wrong relation kind
+DETAIL:  This operation is not supported for foreign tables.
+select pg_check_frozen('test_foreign_table');
+ERROR:  relation "test_foreign_table" is of wrong relation kind
+DETAIL:  This operation is not supported for foreign tables.
+select pg_truncate_visibility_map('test_foreign_table');
+ERROR:  relation "test_foreign_table" is of wrong relation kind
+DETAIL:  This operation is not supported for foreign tables.
+-- check some of the allowed relkinds
+create table regular_table (a int, b text);
+alter table regular_table alter column b set storage external;
+insert into regular_table values (1, repeat('one', 1000)), (2, repeat('two', 1000));
+vacuum (disable_page_skipping) regular_table;
+select count(*) > 0 from pg_visibility('regular_table');
+ ?column? 
+----------
+ t
+(1 row)
+
+select count(*) > 0 from pg_visibility((select reltoastrelid from pg_class where relname = 'regular_table'));
+ ?column? 
+----------
+ t
+(1 row)
+
+truncate regular_table;
+select count(*) > 0 from pg_visibility('regular_table');
+ ?column? 
+----------
+ f
+(1 row)
+
+select count(*) > 0 from pg_visibility((select reltoastrelid from pg_class where relname = 'regular_table'));
+ ?column? 
+----------
+ f
+(1 row)
+
+create materialized view matview_visibility_test as select * from regular_table;
+vacuum (disable_page_skipping) matview_visibility_test;
+select count(*) > 0 from pg_visibility('matview_visibility_test');
+ ?column? 
+----------
+ f
+(1 row)
+
+insert into regular_table values (1), (2);
+refresh materialized view matview_visibility_test;
+select count(*) > 0 from pg_visibility('matview_visibility_test');
+ ?column? 
+----------
+ t
+(1 row)
+
+-- regular tables which are part of a partition *do* have visibility maps
+insert into test_partition values (1);
+vacuum (disable_page_skipping) test_partition;
+select count(*) > 0 from pg_visibility('test_partition', 0);
+ ?column? 
+----------
+ t
+(1 row)
+
+select count(*) > 0 from pg_visibility_map('test_partition');
+ ?column? 
+----------
+ t
+(1 row)
+
+select count(*) > 0 from pg_visibility_map_summary('test_partition');
+ ?column? 
+----------
+ t
+(1 row)
+
+select * from pg_check_frozen('test_partition'); -- hopefully none
+ t_ctid 
+--------
+(0 rows)
+
+select pg_truncate_visibility_map('test_partition');
+ pg_truncate_visibility_map 
+----------------------------
+ 
+(1 row)
+
+-- test copy freeze
+create table copyfreeze (a int, b char(1500));
+-- load all rows via COPY FREEZE and ensure that all pages are set all-visible
+-- and all-frozen.
+begin;
+truncate copyfreeze;
+copy copyfreeze from stdin freeze;
+commit;
+select * from pg_visibility_map('copyfreeze');
+ blkno | all_visible | all_frozen 
+-------+-------------+------------
+     0 | t           | t
+     1 | t           | t
+     2 | t           | t
+(3 rows)
+
+select * from pg_check_frozen('copyfreeze');
+ t_ctid 
+--------
+(0 rows)
+
+-- load half the rows via regular COPY and rest via COPY FREEZE. The pages
+-- which are touched by regular COPY must not be set all-visible/all-frozen. On
+-- the other hand, pages allocated by COPY FREEZE should be marked
+-- all-frozen/all-visible.
+begin;
+truncate copyfreeze;
+copy copyfreeze from stdin;
+copy copyfreeze from stdin freeze;
+commit;
+select * from pg_visibility_map('copyfreeze');
+ blkno | all_visible | all_frozen 
+-------+-------------+------------
+     0 | f           | f
+     1 | f           | f
+     2 | t           | t
+(3 rows)
+
+select * from pg_check_frozen('copyfreeze');
+ t_ctid 
+--------
+(0 rows)
+
+-- Try a mix of regular COPY and COPY FREEZE.
+begin;
+truncate copyfreeze;
+copy copyfreeze from stdin freeze;
+copy copyfreeze from stdin;
+copy copyfreeze from stdin freeze;
+commit;
+select * from pg_visibility_map('copyfreeze');
+ blkno | all_visible | all_frozen 
+-------+-------------+------------
+     0 | t           | t
+     1 | f           | f
+     2 | t           | t
+(3 rows)
+
+select * from pg_check_frozen('copyfreeze');
+ t_ctid 
+--------
+(0 rows)
+
+-- cleanup
+drop table test_partitioned;
+drop view test_view;
+drop sequence test_sequence;
+drop foreign table test_foreign_table;
+drop server dummy_server;
+drop foreign data wrapper dummy;
+drop materialized view matview_visibility_test;
+drop table regular_table;
+drop table copyfreeze;