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ebfe20dc70
Since LISTEN is (still) disallowed, UNLISTEN must be a no-op in a hot-standby session, and so there's no harm in allowing it. This change allows client code to not worry about whether it's connected to a primary or standby server when performing session-state-reset type activities. (Note that DISCARD ALL, which includes UNLISTEN, was already allowed, making it inconsistent to reject UNLISTEN.) Per discussion, back-patch to all supported versions. Shay Rojansky, reviewed by Mi Tar Discussion: https://postgr.es/m/CADT4RqCf2gA_TJtPAjnGzkC3ZiexfBZiLmA-mV66e4UyuVv8bA@mail.gmail.com
219 lines
3.1 KiB
Plaintext
219 lines
3.1 KiB
Plaintext
--
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-- Hot Standby tests
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--
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-- hs_standby_allowed.sql
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--
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-- SELECT
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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select count(*) as should_be_2 from hs2;
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should_be_2
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-------------
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2
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(1 row)
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select count(*) as should_be_3 from hs3;
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should_be_3
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-------------
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3
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(1 row)
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COPY hs1 TO '/tmp/copy_test';
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\! cat /tmp/copy_test
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1
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-- Access sequence directly
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select is_called from hsseq;
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is_called
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-----------
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f
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(1 row)
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-- Transactions
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begin;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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end;
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begin transaction read only;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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end;
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begin transaction isolation level repeatable read;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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commit;
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begin;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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commit;
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begin;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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abort;
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start transaction;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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commit;
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begin;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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rollback;
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begin;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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savepoint s;
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select count(*) as should_be_2 from hs2;
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should_be_2
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-------------
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2
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(1 row)
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commit;
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begin;
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select count(*) as should_be_1 from hs1;
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should_be_1
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-------------
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1
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(1 row)
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savepoint s;
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select count(*) as should_be_2 from hs2;
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should_be_2
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-------------
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2
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(1 row)
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release savepoint s;
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select count(*) as should_be_2 from hs2;
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should_be_2
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-------------
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2
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(1 row)
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savepoint s;
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select count(*) as should_be_3 from hs3;
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should_be_3
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-------------
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3
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(1 row)
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rollback to savepoint s;
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select count(*) as should_be_2 from hs2;
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should_be_2
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-------------
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2
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(1 row)
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commit;
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-- SET parameters
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-- has no effect on read only transactions, but we can still set it
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set synchronous_commit = on;
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show synchronous_commit;
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synchronous_commit
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--------------------
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on
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(1 row)
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reset synchronous_commit;
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discard temp;
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discard all;
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-- CURSOR commands
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BEGIN;
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DECLARE hsc CURSOR FOR select * from hs3;
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FETCH next from hsc;
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col1
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------
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113
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(1 row)
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fetch first from hsc;
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col1
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------
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113
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(1 row)
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fetch last from hsc;
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col1
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------
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115
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(1 row)
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fetch 1 from hsc;
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col1
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------
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(0 rows)
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CLOSE hsc;
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COMMIT;
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-- Prepared plans
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PREPARE hsp AS select count(*) from hs1;
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PREPARE hsp_noexec (integer) AS insert into hs1 values ($1);
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EXECUTE hsp;
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count
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-------
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1
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(1 row)
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DEALLOCATE hsp;
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-- LOCK
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BEGIN;
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LOCK hs1 IN ACCESS SHARE MODE;
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LOCK hs1 IN ROW SHARE MODE;
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LOCK hs1 IN ROW EXCLUSIVE MODE;
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COMMIT;
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-- UNLISTEN
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UNLISTEN a;
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UNLISTEN *;
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-- LOAD
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-- should work, easier if there is no test for that...
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-- ALLOWED COMMANDS
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CHECKPOINT;
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discard all;
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