postgresql/src/test/regress/sql/guc.sql
Tom Lane d9c5e9629b Give up on testing guc.c's behavior for "infinity" inputs.
Further buildfarm testing shows that on the machines that are failing
ac75959cd's test case, what we're actually getting from strtod("-infinity")
is a syntax error (endptr == value) not ERANGE at all.  This test case
is not worth carrying two sets of expected output for, so just remove it,
and revert commit b212245f9's misguided attempt to work around the platform
dependency.

Discussion: https://postgr.es/m/E1h33xk-0001Og-Gs@gemulon.postgresql.org
2019-03-11 17:53:09 -04:00

298 lines
7.6 KiB
PL/PgSQL

-- 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;
-- SET to some nondefault value
SET vacuum_cost_delay TO 40;
SET datestyle = 'ISO, YMD';
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
-- SET LOCAL has no effect outside of a transaction
SET LOCAL vacuum_cost_delay TO 50;
SHOW vacuum_cost_delay;
SET LOCAL datestyle = 'SQL';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
-- SET LOCAL within a transaction that commits
BEGIN;
SET LOCAL vacuum_cost_delay TO 50;
SHOW vacuum_cost_delay;
SET LOCAL datestyle = 'SQL';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
COMMIT;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
-- SET should be reverted after ROLLBACK
BEGIN;
SET vacuum_cost_delay TO 60;
SHOW vacuum_cost_delay;
SET datestyle = 'German';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
ROLLBACK;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
-- Some tests with subtransactions
BEGIN;
SET vacuum_cost_delay TO 70;
SET datestyle = 'MDY';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
SAVEPOINT first_sp;
SET vacuum_cost_delay TO 80.1;
SHOW vacuum_cost_delay;
SET datestyle = 'German, DMY';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
ROLLBACK TO first_sp;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
SAVEPOINT second_sp;
SET vacuum_cost_delay TO '900us';
SET datestyle = 'SQL, YMD';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
SAVEPOINT third_sp;
SET vacuum_cost_delay TO 100;
SHOW vacuum_cost_delay;
SET datestyle = 'Postgres, MDY';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
ROLLBACK TO third_sp;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
ROLLBACK TO second_sp;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
ROLLBACK;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
-- SET LOCAL with Savepoints
BEGIN;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
SAVEPOINT sp;
SET LOCAL vacuum_cost_delay TO 30;
SHOW vacuum_cost_delay;
SET LOCAL datestyle = 'Postgres, MDY';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
ROLLBACK TO sp;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
ROLLBACK;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
-- SET LOCAL persists through RELEASE (which was not true in 8.0-8.2)
BEGIN;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
SAVEPOINT sp;
SET LOCAL vacuum_cost_delay TO 30;
SHOW vacuum_cost_delay;
SET LOCAL datestyle = 'Postgres, MDY';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
RELEASE SAVEPOINT sp;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
ROLLBACK;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
-- SET followed by SET LOCAL
BEGIN;
SET vacuum_cost_delay TO 40;
SET LOCAL vacuum_cost_delay TO 50;
SHOW vacuum_cost_delay;
SET datestyle = 'ISO, DMY';
SET LOCAL datestyle = 'Postgres, MDY';
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
COMMIT;
SHOW vacuum_cost_delay;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
--
-- 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;
SELECT '2006-08-13 12:34:56'::timestamptz;
RESET datestyle;
SHOW datestyle;
SELECT '2006-08-13 12:34:56'::timestamptz;
-- Test some simple error cases
SET seq_page_cost TO 'NaN';
SET vacuum_cost_delay TO '10s';
--
-- Test DISCARD TEMP
--
CREATE TEMP TABLE reset_test ( data text ) ON COMMIT DELETE ROWS;
SELECT relname FROM pg_class WHERE relname = 'reset_test';
DISCARD TEMP;
SELECT relname FROM pg_class WHERE relname = 'reset_test';
--
-- 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();
SELECT name FROM pg_prepared_statements;
SELECT name FROM pg_cursors;
SHOW vacuum_cost_delay;
SELECT relname from pg_class where relname = 'tmp_foo';
SELECT current_user = 'regress_guc_user';
-- discard everything
DISCARD ALL;
-- look again
SELECT pg_listening_channels();
SELECT name FROM pg_prepared_statements;
SELECT name FROM pg_cursors;
SHOW vacuum_cost_delay;
SELECT relname from pg_class where relname = 'tmp_foo';
SELECT current_user = 'regress_guc_user';
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);
create schema not_there_initially;
select current_schemas(false);
drop schema not_there_initially;
select current_schemas(false);
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');
alter function report_guc(text) set work_mem = '2MB';
select report_guc('work_mem'), current_setting('work_mem');
alter function report_guc(text) reset all;
select report_guc('work_mem'), current_setting('work_mem');
-- 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');
alter function myfunc(int) reset all;
select myfunc(0), current_setting('work_mem');
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');
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);
select current_setting('work_mem');
select myfunc(1), current_setting('work_mem');
-- check current_setting()'s behavior with invalid setting name
select current_setting('nosuch.setting'); -- FAIL
select current_setting('nosuch.setting', false); -- FAIL
select current_setting('nosuch.setting', true) is null;
-- after this, all three cases should yield 'nada'
set nosuch.setting = 'nada';
select current_setting('nosuch.setting');
select current_setting('nosuch.setting', false);
select current_setting('nosuch.setting', true);
-- 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;
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;
select func_with_bad_set();
reset check_function_bodies;
set default_with_oids to f;
-- Should not allow to set it to true.
set default_with_oids to t;