Example in "42.8. Transaction Management" doesn't work for PostgreSQL v 12.7

Hi,

Le mer. 23 juin 2021 à 10:01, Vladimir Shvartsgor <vshvartsgor@gmail.com> a
écrit :

Hi,

When the first example of the
https://www.postgresql.org/docs/12/plpgsql-transactions.html:

*--run before:*
*--create table test1(a int);*

*CREATE PROCEDURE transaction_test1()*
*LANGUAGE plpgsql*
*AS $$*
*BEGIN*
* FOR i IN 0..9 LOOP*
* INSERT INTO test1 (a) VALUES (i);*
* IF i % 2 = 0 THEN*
* COMMIT;*
* ELSE*
* ROLLBACK;*
* END IF;*
* END LOOP;*
*END;*
*$$;*

CALL transaction_test1();

The CALL fails with error:

*ERROR: invalid transaction termination*
*CONTEXT: PL/pgSQL function transaction_test1() line 6 at COMMIT*
*SQL state: 2D000*

The exact version of PostgreSQL: *PostgreSQL 12.7 (Ubuntu
12.7-0ubuntu0.20.04.1) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu
9.3.0-17ubuntu1~20.04) 9.3.0, 64-bit*

I copy and paste your example, and it works for me. And the contents of the
table look good to me:

$ psql
Time: 4.458 ms
psql (12.7)
Type "help" for help.

postgres@r12 =# truncate test1;
TRUNCATE TABLE
Time: 6.504 ms
postgres@r12 =# CALL transaction_test1();
CALL
Time: 15.540 ms
postgres@r12 =# TABLE test1;
┌───┐
│ a │
├───┤
│ 0 │
│ 2 │
│ 4 │
│ 6 │
│ 8 │
└───┘
(5 rows)
Time: 0.948 ms

There must be something else on your side that makes it fail.

--
Guillaume.

Hi Guillaume,
Thanks for the quick response! You are right, the function is working fine
in psql. The problem is observed in pgAdmin 4 v5.3. I have disable "Auto
Commit", "Auto Rollback", "Prompt to commit/rollback active transactions?".
What setting can influence the behaviour?

Regards,
Vladimir

On Wed, Jun 23, 2021 at 2:54 PM Guillaume Lelarge <guillaume@lelarge.info>
wrote: