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18555b1323
To ensure that "make installcheck" can be used safely against an existing installation, we need to be careful about what global object names (database, role, and tablespace names) we use; otherwise we might accidentally clobber important objects. There's been a weak consensus that test databases should have names including "regression", and that test role names should start with "regress_", but we didn't have any particular rule about tablespace names; and neither of the other rules was followed with any consistency either. This commit moves us a long way towards having a hard-and-fast rule that regression test databases must have names including "regression", and that test role and tablespace names must start with "regress_". It's not completely there because I did not touch some test cases in rolenames.sql that test creation of special role names like "session_user". That will require some rethinking of exactly what we want to test, whereas the intent of this patch is just to hit all the cases in which the needed renamings are cosmetic. There is no enforcement mechanism in this patch either, but if we don't add one we can expect that the tests will soon be violating the convention again. Again, that's not such a cosmetic change and it will require discussion. (But I did use a quick-hack enforcement patch to find these cases.) Discussion: <16638.1468620817@sss.pgh.pa.us>
290 lines
7.4 KiB
PL/PgSQL
290 lines
7.4 KiB
PL/PgSQL
-- pg_regress should ensure that this default value applies; however
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-- we can't rely on any specific default value of vacuum_cost_delay
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SHOW datestyle;
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-- SET to some nondefault value
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SET vacuum_cost_delay TO 40;
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SET datestyle = 'ISO, YMD';
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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-- SET LOCAL has no effect outside of a transaction
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SET LOCAL vacuum_cost_delay TO 50;
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SHOW vacuum_cost_delay;
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SET LOCAL datestyle = 'SQL';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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-- SET LOCAL within a transaction that commits
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BEGIN;
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SET LOCAL vacuum_cost_delay TO 50;
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SHOW vacuum_cost_delay;
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SET LOCAL datestyle = 'SQL';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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COMMIT;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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-- SET should be reverted after ROLLBACK
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BEGIN;
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SET vacuum_cost_delay TO 60;
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SHOW vacuum_cost_delay;
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SET datestyle = 'German';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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ROLLBACK;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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-- Some tests with subtransactions
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BEGIN;
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SET vacuum_cost_delay TO 70;
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SET datestyle = 'MDY';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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SAVEPOINT first_sp;
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SET vacuum_cost_delay TO 80;
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SHOW vacuum_cost_delay;
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SET datestyle = 'German, DMY';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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ROLLBACK TO first_sp;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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SAVEPOINT second_sp;
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SET vacuum_cost_delay TO 90;
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SET datestyle = 'SQL, YMD';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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SAVEPOINT third_sp;
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SET vacuum_cost_delay TO 100;
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SHOW vacuum_cost_delay;
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SET datestyle = 'Postgres, MDY';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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ROLLBACK TO third_sp;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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ROLLBACK TO second_sp;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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ROLLBACK;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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-- SET LOCAL with Savepoints
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BEGIN;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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SAVEPOINT sp;
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SET LOCAL vacuum_cost_delay TO 30;
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SHOW vacuum_cost_delay;
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SET LOCAL datestyle = 'Postgres, MDY';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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ROLLBACK TO sp;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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ROLLBACK;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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-- SET LOCAL persists through RELEASE (which was not true in 8.0-8.2)
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BEGIN;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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SAVEPOINT sp;
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SET LOCAL vacuum_cost_delay TO 30;
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SHOW vacuum_cost_delay;
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SET LOCAL datestyle = 'Postgres, MDY';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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RELEASE SAVEPOINT sp;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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ROLLBACK;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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-- SET followed by SET LOCAL
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BEGIN;
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SET vacuum_cost_delay TO 40;
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SET LOCAL vacuum_cost_delay TO 50;
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SHOW vacuum_cost_delay;
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SET datestyle = 'ISO, DMY';
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SET LOCAL datestyle = 'Postgres, MDY';
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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COMMIT;
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SHOW vacuum_cost_delay;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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--
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-- Test RESET. We use datestyle because the reset value is forced by
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-- pg_regress, so it doesn't depend on the installation's configuration.
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--
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SET datestyle = iso, ymd;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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RESET datestyle;
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SHOW datestyle;
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SELECT '2006-08-13 12:34:56'::timestamptz;
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--
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-- Test DISCARD TEMP
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--
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CREATE TEMP TABLE reset_test ( data text ) ON COMMIT DELETE ROWS;
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SELECT relname FROM pg_class WHERE relname = 'reset_test';
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DISCARD TEMP;
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SELECT relname FROM pg_class WHERE relname = 'reset_test';
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--
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-- Test DISCARD ALL
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--
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-- do changes
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DECLARE foo CURSOR WITH HOLD FOR SELECT 1;
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PREPARE foo AS SELECT 1;
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LISTEN foo_event;
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SET vacuum_cost_delay = 13;
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CREATE TEMP TABLE tmp_foo (data text) ON COMMIT DELETE ROWS;
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CREATE ROLE regress_guc_user;
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SET SESSION AUTHORIZATION regress_guc_user;
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-- look changes
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SELECT pg_listening_channels();
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SELECT name FROM pg_prepared_statements;
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SELECT name FROM pg_cursors;
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SHOW vacuum_cost_delay;
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SELECT relname from pg_class where relname = 'tmp_foo';
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SELECT current_user = 'regress_guc_user';
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-- discard everything
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DISCARD ALL;
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-- look again
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SELECT pg_listening_channels();
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SELECT name FROM pg_prepared_statements;
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SELECT name FROM pg_cursors;
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SHOW vacuum_cost_delay;
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SELECT relname from pg_class where relname = 'tmp_foo';
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SELECT current_user = 'regress_guc_user';
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DROP ROLE regress_guc_user;
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--
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-- search_path should react to changes in pg_namespace
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--
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set search_path = foo, public, not_there_initially;
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select current_schemas(false);
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create schema not_there_initially;
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select current_schemas(false);
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drop schema not_there_initially;
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select current_schemas(false);
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reset search_path;
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--
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-- Tests for function-local GUC settings
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--
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set work_mem = '3MB';
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create function report_guc(text) returns text as
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$$ select current_setting($1) $$ language sql
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set work_mem = '1MB';
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select report_guc('work_mem'), current_setting('work_mem');
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alter function report_guc(text) set work_mem = '2MB';
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select report_guc('work_mem'), current_setting('work_mem');
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alter function report_guc(text) reset all;
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select report_guc('work_mem'), current_setting('work_mem');
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-- SET LOCAL is restricted by a function SET option
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create or replace function myfunc(int) returns text as $$
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begin
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set local work_mem = '2MB';
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return current_setting('work_mem');
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end $$
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language plpgsql
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set work_mem = '1MB';
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select myfunc(0), current_setting('work_mem');
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alter function myfunc(int) reset all;
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select myfunc(0), current_setting('work_mem');
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set work_mem = '3MB';
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-- but SET isn't
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create or replace function myfunc(int) returns text as $$
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begin
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set work_mem = '2MB';
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return current_setting('work_mem');
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end $$
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language plpgsql
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set work_mem = '1MB';
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select myfunc(0), current_setting('work_mem');
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set work_mem = '3MB';
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-- it should roll back on error, though
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create or replace function myfunc(int) returns text as $$
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begin
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set work_mem = '2MB';
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perform 1/$1;
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return current_setting('work_mem');
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end $$
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language plpgsql
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set work_mem = '1MB';
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select myfunc(0);
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select current_setting('work_mem');
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select myfunc(1), current_setting('work_mem');
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-- check current_setting()'s behavior with invalid setting name
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select current_setting('nosuch.setting'); -- FAIL
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select current_setting('nosuch.setting', false); -- FAIL
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select current_setting('nosuch.setting', true) is null;
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-- after this, all three cases should yield 'nada'
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set nosuch.setting = 'nada';
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select current_setting('nosuch.setting');
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select current_setting('nosuch.setting', false);
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select current_setting('nosuch.setting', true);
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-- Normally, CREATE FUNCTION should complain about invalid values in
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-- function SET options; but not if check_function_bodies is off,
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-- because that creates ordering hazards for pg_dump
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create function func_with_bad_set() returns int as $$ select 1 $$
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language sql
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set default_text_search_config = no_such_config;
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set check_function_bodies = off;
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create function func_with_bad_set() returns int as $$ select 1 $$
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language sql
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set default_text_search_config = no_such_config;
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select func_with_bad_set();
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reset check_function_bodies;
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