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b7e84c65d5
No GUCs that use NO_SHOW_ALL are reported in pg_show_all_settings(),
hence trying to check combinations of flags related to it is pointless.
These queries have been introduced by d10e41d, so backpatch down to 15
to keep all the branches consistent. Equivalent checks based on
NO_SHOW_ALL could be added in check_GUC_init() when a GUC is initially
loaded, but this can be done only on HEAD.
Author: Nitin Jadhav
Discussion: https://postgr.es/m/CAMm1aWaYe0muu3ABo7iSAgK+OWDS9yNe8GGRYnCyeEpScYKa+g@mail.gmail.com
Backpatch-through: 15
891 lines
18 KiB
Plaintext
891 lines
18 KiB
Plaintext
-- 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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DateStyle
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---------------
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Postgres, MDY
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(1 row)
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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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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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WARNING: SET LOCAL can only be used in transaction blocks
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SET LOCAL datestyle = 'SQL';
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WARNING: SET LOCAL can only be used in transaction blocks
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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vacuum_cost_delay
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-------------------
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50ms
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(1 row)
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SET LOCAL datestyle = 'SQL';
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SHOW datestyle;
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DateStyle
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-----------
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SQL, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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-------------------------
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08/13/2006 12:34:56 PDT
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(1 row)
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COMMIT;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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vacuum_cost_delay
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-------------------
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60ms
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(1 row)
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SET datestyle = 'German';
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SHOW datestyle;
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DateStyle
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-------------
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German, DMY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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-------------------------
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13.08.2006 12:34:56 PDT
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(1 row)
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ROLLBACK;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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DateStyle
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-----------
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ISO, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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SAVEPOINT first_sp;
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SET vacuum_cost_delay TO 80.1;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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80100us
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(1 row)
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SET datestyle = 'German, DMY';
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SHOW datestyle;
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DateStyle
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-------------
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German, DMY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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-------------------------
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13.08.2006 12:34:56 PDT
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(1 row)
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ROLLBACK TO first_sp;
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SHOW datestyle;
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DateStyle
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-----------
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ISO, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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SAVEPOINT second_sp;
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SET vacuum_cost_delay TO '900us';
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SET datestyle = 'SQL, YMD';
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SHOW datestyle;
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DateStyle
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-----------
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SQL, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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-------------------------
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08/13/2006 12:34:56 PDT
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(1 row)
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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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vacuum_cost_delay
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-------------------
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100ms
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(1 row)
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SET datestyle = 'Postgres, MDY';
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SHOW datestyle;
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DateStyle
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---------------
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Postgres, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------------
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Sun Aug 13 12:34:56 2006 PDT
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(1 row)
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ROLLBACK TO third_sp;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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900us
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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SQL, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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-------------------------
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08/13/2006 12:34:56 PDT
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(1 row)
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ROLLBACK TO second_sp;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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70ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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ROLLBACK;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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vacuum_cost_delay
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-------------------
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30ms
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(1 row)
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SET LOCAL datestyle = 'Postgres, MDY';
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SHOW datestyle;
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DateStyle
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---------------
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Postgres, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------------
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Sun Aug 13 12:34:56 2006 PDT
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(1 row)
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ROLLBACK TO sp;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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ROLLBACK;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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vacuum_cost_delay
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-------------------
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30ms
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(1 row)
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SET LOCAL datestyle = 'Postgres, MDY';
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SHOW datestyle;
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DateStyle
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---------------
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Postgres, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------------
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Sun Aug 13 12:34:56 2006 PDT
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(1 row)
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RELEASE SAVEPOINT sp;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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30ms
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(1 row)
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SHOW datestyle;
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DateStyle
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---------------
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Postgres, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------------
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Sun Aug 13 12:34:56 2006 PDT
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(1 row)
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ROLLBACK;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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vacuum_cost_delay
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-------------------
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50ms
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(1 row)
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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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DateStyle
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---------------
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Postgres, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------------
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Sun Aug 13 12:34:56 2006 PDT
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(1 row)
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COMMIT;
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SHOW vacuum_cost_delay;
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vacuum_cost_delay
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-------------------
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40ms
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(1 row)
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SHOW datestyle;
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DateStyle
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-----------
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ISO, DMY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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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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DateStyle
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-----------
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ISO, YMD
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------
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2006-08-13 12:34:56-07
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(1 row)
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RESET datestyle;
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SHOW datestyle;
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DateStyle
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---------------
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Postgres, MDY
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(1 row)
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SELECT '2006-08-13 12:34:56'::timestamptz;
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timestamptz
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------------------------------
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Sun Aug 13 12:34:56 2006 PDT
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(1 row)
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-- Test some simple error cases
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SET seq_page_cost TO 'NaN';
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ERROR: invalid value for parameter "seq_page_cost": "NaN"
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SET vacuum_cost_delay TO '10s';
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ERROR: 10000 ms is outside the valid range for parameter "vacuum_cost_delay" (0 .. 100)
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SET no_such_variable TO 42;
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ERROR: unrecognized configuration parameter "no_such_variable"
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-- Test "custom" GUCs created on the fly (which aren't really an
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-- intended feature, but many people use them).
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SHOW custom.my_guc; -- error, not known yet
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ERROR: unrecognized configuration parameter "custom.my_guc"
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SET custom.my_guc = 42;
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SHOW custom.my_guc;
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custom.my_guc
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---------------
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42
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(1 row)
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RESET custom.my_guc; -- this makes it go to empty, not become unknown again
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SHOW custom.my_guc;
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custom.my_guc
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---------------
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(1 row)
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SET custom.my.qualified.guc = 'foo';
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SHOW custom.my.qualified.guc;
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custom.my.qualified.guc
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-------------------------
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foo
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(1 row)
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SET custom."bad-guc" = 42; -- disallowed because -c cannot set this name
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ERROR: invalid configuration parameter name "custom.bad-guc"
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DETAIL: Custom parameter names must be two or more simple identifiers separated by dots.
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SHOW custom."bad-guc";
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ERROR: unrecognized configuration parameter "custom.bad-guc"
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SET special."weird name" = 'foo'; -- could be allowed, but we choose not to
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ERROR: invalid configuration parameter name "special.weird name"
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DETAIL: Custom parameter names must be two or more simple identifiers separated by dots.
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SHOW special."weird name";
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ERROR: unrecognized configuration parameter "special.weird name"
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-- Check what happens when you try to set a "custom" GUC within the
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-- namespace of an extension.
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SET plpgsql.extra_foo_warnings = true; -- allowed if plpgsql is not loaded yet
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LOAD 'plpgsql'; -- this will throw a warning and delete the variable
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WARNING: invalid configuration parameter name "plpgsql.extra_foo_warnings", removing it
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DETAIL: "plpgsql" is now a reserved prefix.
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SET plpgsql.extra_foo_warnings = true; -- now, it's an error
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ERROR: invalid configuration parameter name "plpgsql.extra_foo_warnings"
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DETAIL: "plpgsql" is a reserved prefix.
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SHOW plpgsql.extra_foo_warnings;
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ERROR: unrecognized configuration parameter "plpgsql.extra_foo_warnings"
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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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relname
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------------
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reset_test
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(1 row)
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DISCARD TEMP;
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SELECT relname FROM pg_class WHERE relname = 'reset_test';
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relname
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---------
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(0 rows)
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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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pg_listening_channels
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|
-----------------------
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foo_event
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(1 row)
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|
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SELECT name FROM pg_prepared_statements;
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name
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------
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foo
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(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 default_with_oids to f;
|
|
-- Should not allow to set it to true.
|
|
set default_with_oids to t;
|
|
ERROR: tables declared WITH OIDS are not supported
|
|
-- Test GUC categories and flag patterns
|
|
SELECT pg_settings_get_flags(NULL);
|
|
pg_settings_get_flags
|
|
-----------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT pg_settings_get_flags('does_not_exist');
|
|
pg_settings_get_flags
|
|
-----------------------
|
|
|
|
(1 row)
|
|
|
|
CREATE TABLE tab_settings_flags AS SELECT name, category,
|
|
'EXPLAIN' = ANY(flags) AS explain,
|
|
'NO_RESET' = ANY(flags) AS no_reset,
|
|
'NO_RESET_ALL' = ANY(flags) AS no_reset_all,
|
|
'NOT_IN_SAMPLE' = ANY(flags) AS not_in_sample,
|
|
'RUNTIME_COMPUTED' = ANY(flags) AS runtime_computed
|
|
FROM pg_show_all_settings() AS psas,
|
|
pg_settings_get_flags(psas.name) AS flags;
|
|
-- Developer GUCs should be flagged with GUC_NOT_IN_SAMPLE:
|
|
SELECT name FROM tab_settings_flags
|
|
WHERE category = 'Developer Options' AND NOT not_in_sample
|
|
ORDER BY 1;
|
|
name
|
|
------
|
|
(0 rows)
|
|
|
|
-- Most query-tuning GUCs are flagged as valid for EXPLAIN.
|
|
-- default_statistics_target is an exception.
|
|
SELECT name FROM tab_settings_flags
|
|
WHERE category ~ '^Query Tuning' AND NOT explain
|
|
ORDER BY 1;
|
|
name
|
|
---------------------------
|
|
default_statistics_target
|
|
(1 row)
|
|
|
|
-- Runtime-computed GUCs should be part of the preset category.
|
|
SELECT name FROM tab_settings_flags
|
|
WHERE NOT category = 'Preset Options' AND runtime_computed
|
|
ORDER BY 1;
|
|
name
|
|
------
|
|
(0 rows)
|
|
|
|
-- Preset GUCs are flagged as NOT_IN_SAMPLE.
|
|
SELECT name FROM tab_settings_flags
|
|
WHERE category = 'Preset Options' AND NOT not_in_sample
|
|
ORDER BY 1;
|
|
name
|
|
------
|
|
(0 rows)
|
|
|
|
-- NO_RESET implies NO_RESET_ALL.
|
|
SELECT name FROM tab_settings_flags
|
|
WHERE no_reset AND NOT no_reset_all
|
|
ORDER BY 1;
|
|
name
|
|
------
|
|
(0 rows)
|
|
|
|
DROP TABLE tab_settings_flags;
|