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|
-- pg_regress should ensure that this default value applies; however
-- we can't rely on any specific default value of vacuum_cost_delay
SHOW datestyle;
DateStyle
---------------
Postgres, MDY
(1 row)
-- SET to some nondefault value
SET vacuum_cost_delay TO 40;
SET datestyle = 'ISO, YMD';
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
40ms
(1 row)
SHOW datestyle;
DateStyle
-----------
ISO, YMD
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
------------------------
2006-08-13 12:34:56-07
(1 row)
-- SET LOCAL has no effect outside of a transaction
SET LOCAL vacuum_cost_delay TO 50;
WARNING: SET LOCAL can only be used in transaction blocks
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
40ms
(1 row)
SET LOCAL datestyle = 'SQL';
WARNING: SET LOCAL can only be used in transaction blocks
SHOW datestyle;
DateStyle
-----------
ISO, YMD
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
------------------------
2006-08-13 12:34:56-07
(1 row)
-- SET LOCAL within a transaction that commits
BEGIN;
SET LOCAL vacuum_cost_delay TO 50;
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
50ms
(1 row)
SET LOCAL datestyle = 'SQL';
SHOW datestyle;
DateStyle
-----------
SQL, YMD
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
-------------------------
08/13/2006 12:34:56 PDT
(1 row)
COMMIT;
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
40ms
(1 row)
SHOW datestyle;
DateStyle
-----------
ISO, YMD
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
------------------------
2006-08-13 12:34:56-07
(1 row)
-- SET should be reverted after ROLLBACK
BEGIN;
SET vacuum_cost_delay TO 60;
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
60ms
(1 row)
SET datestyle = 'German';
SHOW datestyle;
DateStyle
-------------
German, DMY
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
-------------------------
13.08.2006 12:34:56 PDT
(1 row)
ROLLBACK;
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
40ms
(1 row)
SHOW datestyle;
DateStyle
-----------
ISO, YMD
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
------------------------
2006-08-13 12:34:56-07
(1 row)
-- SET followed by SET LOCAL
BEGIN;
SET vacuum_cost_delay TO 40;
SET LOCAL vacuum_cost_delay TO 50;
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
50ms
(1 row)
SET datestyle = 'ISO, DMY';
SET LOCAL datestyle = 'Postgres, MDY';
SHOW datestyle;
DateStyle
---------------
Postgres, MDY
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
------------------------------
Sun Aug 13 12:34:56 2006 PDT
(1 row)
COMMIT;
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
40ms
(1 row)
SHOW datestyle;
DateStyle
-----------
ISO, DMY
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
------------------------
2006-08-13 12:34:56-07
(1 row)
--
-- Test RESET. We use datestyle because the reset value is forced by
-- pg_regress, so it doesn't depend on the installation's configuration.
--
SET datestyle = iso, ymd;
SHOW datestyle;
DateStyle
-----------
ISO, YMD
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
------------------------
2006-08-13 12:34:56-07
(1 row)
RESET datestyle;
SHOW datestyle;
DateStyle
---------------
Postgres, MDY
(1 row)
SELECT '2006-08-13 12:34:56'::timestamptz;
timestamptz
------------------------------
Sun Aug 13 12:34:56 2006 PDT
(1 row)
--
-- Test DISCARD TEMP
--
CREATE TEMP TABLE reset_test ( data text ) ON COMMIT DELETE ROWS;
SELECT relname FROM pg_class WHERE relname = 'reset_test';
relname
------------
reset_test
(1 row)
DISCARD TEMP;
SELECT relname FROM pg_class WHERE relname = 'reset_test';
relname
---------
(0 rows)
--
-- Test DISCARD ALL
--
-- do changes
DECLARE foo CURSOR WITH HOLD FOR SELECT 1;
PREPARE foo AS SELECT 1;
LISTEN foo_event;
SET vacuum_cost_delay = 13;
CREATE TEMP TABLE tmp_foo (data text) ON COMMIT DELETE ROWS;
CREATE ROLE regress_guc_user;
SET SESSION AUTHORIZATION regress_guc_user;
-- look changes
SELECT pg_listening_channels();
pg_listening_channels
-----------------------
foo_event
(1 row)
SELECT name FROM pg_prepared_statements;
name
------
foo
(1 row)
SELECT name FROM pg_cursors;
name
------
foo
(1 row)
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
13ms
(1 row)
SELECT relname from pg_class where relname = 'tmp_foo';
relname
---------
tmp_foo
(1 row)
SELECT current_user = 'regress_guc_user';
?column?
----------
t
(1 row)
-- discard everything
DISCARD ALL;
-- look again
SELECT pg_listening_channels();
pg_listening_channels
-----------------------
(0 rows)
SELECT name FROM pg_prepared_statements;
name
------
(0 rows)
SELECT name FROM pg_cursors;
name
------
(0 rows)
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
0
(1 row)
SELECT relname from pg_class where relname = 'tmp_foo';
relname
---------
(0 rows)
SELECT current_user = 'regress_guc_user';
?column?
----------
f
(1 row)
DROP ROLE regress_guc_user;
--
-- search_path should react to changes in pg_namespace
--
set search_path = foo, public, not_there_initially;
select current_schemas(false);
current_schemas
-----------------
{public}
(1 row)
create schema not_there_initially;
select current_schemas(false);
current_schemas
------------------------------
{public,not_there_initially}
(1 row)
drop schema not_there_initially;
select current_schemas(false);
current_schemas
-----------------
{public}
(1 row)
reset search_path;
--
-- Tests for function-local GUC settings
--
set work_mem = '3MB';
create function report_guc(text) returns text as
$$ select current_setting($1) $$ language sql
set work_mem = '1MB';
select report_guc('work_mem'), current_setting('work_mem');
report_guc | current_setting
------------+-----------------
1MB | 3MB
(1 row)
alter function report_guc(text) set work_mem = '2MB';
select report_guc('work_mem'), current_setting('work_mem');
report_guc | current_setting
------------+-----------------
2MB | 3MB
(1 row)
alter function report_guc(text) reset all;
select report_guc('work_mem'), current_setting('work_mem');
report_guc | current_setting
------------+-----------------
3MB | 3MB
(1 row)
-- SET LOCAL is restricted by a function SET option
create or replace function myfunc(int) returns text as $$
begin
set local work_mem = '2MB';
return current_setting('work_mem');
end $$
language plpgsql
set work_mem = '1MB';
select myfunc(0), current_setting('work_mem');
myfunc | current_setting
--------+-----------------
2MB | 3MB
(1 row)
alter function myfunc(int) reset all;
select myfunc(0), current_setting('work_mem');
myfunc | current_setting
--------+-----------------
2MB | 2MB
(1 row)
set work_mem = '3MB';
-- but SET isn't
create or replace function myfunc(int) returns text as $$
begin
set work_mem = '2MB';
return current_setting('work_mem');
end $$
language plpgsql
set work_mem = '1MB';
select myfunc(0), current_setting('work_mem');
myfunc | current_setting
--------+-----------------
2MB | 2MB
(1 row)
set work_mem = '3MB';
-- it should roll back on error, though
create or replace function myfunc(int) returns text as $$
begin
set work_mem = '2MB';
perform 1/$1;
return current_setting('work_mem');
end $$
language plpgsql
set work_mem = '1MB';
select myfunc(0);
ERROR: division by zero
CONTEXT: SQL statement "SELECT 1/$1"
PL/pgSQL function myfunc(integer) line 4 at PERFORM
select current_setting('work_mem');
current_setting
-----------------
3MB
(1 row)
select myfunc(1), current_setting('work_mem');
myfunc | current_setting
--------+-----------------
2MB | 2MB
(1 row)
-- check current_setting()'s behavior with invalid setting name
select current_setting('nosuch.setting'); -- FAIL
ERROR: unrecognized configuration parameter "nosuch.setting"
select current_setting('nosuch.setting', false); -- FAIL
ERROR: unrecognized configuration parameter "nosuch.setting"
select current_setting('nosuch.setting', true) is null;
?column?
----------
t
(1 row)
-- after this, all three cases should yield 'nada'
set nosuch.setting = 'nada';
select current_setting('nosuch.setting');
current_setting
-----------------
nada
(1 row)
select current_setting('nosuch.setting', false);
current_setting
-----------------
nada
(1 row)
select current_setting('nosuch.setting', true);
current_setting
-----------------
nada
(1 row)
-- Normally, CREATE FUNCTION should complain about invalid values in
-- function SET options; but not if check_function_bodies is off,
-- because that creates ordering hazards for pg_dump
create function func_with_bad_set() returns int as $$ select 1 $$
language sql
set default_text_search_config = no_such_config;
NOTICE: text search configuration "no_such_config" does not exist
ERROR: invalid value for parameter "default_text_search_config": "no_such_config"
set check_function_bodies = off;
create function func_with_bad_set() returns int as $$ select 1 $$
language sql
set default_text_search_config = no_such_config;
NOTICE: text search configuration "no_such_config" does not exist
select func_with_bad_set();
ERROR: invalid value for parameter "default_text_search_config": "no_such_config"
reset check_function_bodies;
SET application_name TO "special name";
CREATE TABLE testtab (a int);
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
SET default_transaction_isolation TO "read committed";
CREATE TABLE testtab (a int);
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
SET work_mem TO '64kB';
CREATE TABLE testtab (a int);
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
SET work_mem TO "64kB";
CREATE TABLE testtab (a int);
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
SET log_min_duration_statement = '1s';
CREATE TABLE testtab (a int);
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
CREATE SCHEMA testschema;
CREATE SCHEMA "testschema 2";
CREATE SCHEMA "testschema 3";
CREATE SCHEMA READ;
CREATE SCHEMA "READ";
-- ERROR
CREATE SCHEMA SELECT;
ERROR: syntax error at or near "SELECT"
LINE 1: CREATE SCHEMA SELECT;
^
-- Ok
CREATE SCHEMA "SELECT";
SET search_path TO testschema;
CREATE TABLE testtab (a int);
\d+ testtab
Table "testschema.testtab"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+---------+-----------+----------+---------+---------+--------------+-------------
a | integer | | | | plain | |
Distribute By: HASH(a)
Location Nodes: ALL DATANODES
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
SET search_path TO "testschema";
CREATE TABLE testtab (a int);
\d+ testtab
Table "testschema.testtab"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+---------+-----------+----------+---------+---------+--------------+-------------
a | integer | | | | plain | |
Distribute By: HASH(a)
Location Nodes: ALL DATANODES
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
SET search_path TO testschema, "testschema 2";
CREATE TABLE testtab (a int);
\d+ testtab
Table "testschema.testtab"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+---------+-----------+----------+---------+---------+--------------+-------------
a | integer | | | | plain | |
Distribute By: HASH(a)
Location Nodes: ALL DATANODES
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
SET search_path TO "testschema 3", "testschema 2";
CREATE TABLE testtab (a int);
\d+ testtab
Table "testschema 3.testtab"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+---------+-----------+----------+---------+---------+--------------+-------------
a | integer | | | | plain | |
Distribute By: HASH(a)
Location Nodes: ALL DATANODES
INSERT INTO testtab VALUES (1), (2), (3);
SELECT * FROM testtab;
a
---
1
2
3
(3 rows)
DROP TABLE testtab;
-- ERROR
SET search_path TO "testschema 3", SELECT;
ERROR: syntax error at or near "SELECT"
LINE 1: SET search_path TO "testschema 3", SELECT;
^
SET search_path TO "SELECT", "testschema 3";
CREATE TABLE testtab (a int);
\d+ testtab
Table "SELECT.testtab"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+---------+-----------+----------+---------+---------+--------------+-------------
a | integer | | | | plain | |
Distribute By: HASH(a)
Location Nodes: ALL DATANODES
CREATE TABLE "testschema 3".testtab (a int);
\d+ testtab
Table "SELECT.testtab"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+---------+-----------+----------+---------+---------+--------------+-------------
a | integer | | | | plain | |
Distribute By: HASH(a)
Location Nodes: ALL DATANODES
INSERT INTO "testschema 3".testtab VALUES (1), (2), (3);
INSERT INTO "SELECT".testtab VALUES (4);
SELECT * FROM "testschema 3".testtab;
a
---
1
2
3
(3 rows)
INSERT INTO testtab SELECT * FROM "testschema 3".testtab;
SELECT * FROM "testschema 3".testtab;
a
---
1
2
3
(3 rows)
\d+ testtab
Table "SELECT.testtab"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+---------+-----------+----------+---------+---------+--------------+-------------
a | integer | | | | plain | |
Distribute By: HASH(a)
Location Nodes: ALL DATANODES
SELECT * FROM testtab;
a
---
1
2
4
3
(4 rows)
INSERT INTO testtab SELECT * FROM testtab;
SELECT * FROM testtab;
a
---
1
2
1
2
4
3
4
3
(8 rows)
DROP TABLE testtab;
DROP SCHEMA testschema CASCADE;
DROP SCHEMA "testschema 2" CASCADE;
DROP SCHEMA "testschema 3" CASCADE;
NOTICE: drop cascades to table testtab
DROP SCHEMA "READ" CASCADE;
DROP SCHEMA SELECT CASCADE;
ERROR: syntax error at or near "SELECT"
LINE 1: DROP SCHEMA SELECT CASCADE;
^
DROP SCHEMA "SELECT" CASCADE;
|