Re: Re: Postgres 9.4.4/9.4.6: plpython2/3 intallation issues on a Windows 7 machine

[Alex Ignatov <a.ignatov@xxxxxxxxxxxxxx>]

May be this would be the cause of you issue:
http://www.postgresql.org/docs/9.2/static/plpython-python23.html

It is not allowed to use PL/Python based on Python 2 and PL/Python based on Python 3 in the same session, because the symbols in the dynamic modules would clash, which could result in crashes of the PostgreSQL server process. There is a check that prevents mixing Python major versions in a session, which will abort the session if a mismatch is detected. It is possible, however, to use both PL/Python variants in the same database, from separate sessions.

On 31.03.2016 12:53, margrit drescher wrote:

I originally used the 9.4.6 version on http://www.enterprisedb.com/products-services-training/pgdownload#windows for 64-bit windows and loaded the language pack recommended in the readme file.

On 31 March 2016 at 11:25, Alex Ignatov-2 [via PostgreSQL] <[hidden email]> wrote:

On 31.03.2016 10:50, margrit drescher wrote:

> I installed postgres 9.4.6 on my Windows 7 (64-bit) machine, and managed to
> create the plpython3u extension without a problem.
>
> I then restored an existing DB (created in postgres 9.3).  The plpython3
> functions restored without a hitch and can execute.
>
>
> However, as soon as I try to create a NEW plpython3 function on the db the
> postgres service terminates and does an auto-recovery.
>
> I then downgraded to postgres 9.4.4 and am still encountering the same
> issue.
>
>
>
> Example:
>
> When  running the following code:
>
> "create function test() returns void as $$ plpy.notice( 'xxx' ); $$ language
> plpython3u"
>
>
> the following is generated in the log:
>
> "
> 2016-03-31 09:36:56 CAT LOG:  server process (PID 6376) exited with exit
> code 3
> 2016-03-31 09:36:56 CAT DETAIL:  Failed process was running:  create
> function test() returns void as $$ plpy.notice( 'xxx' ); $$ language
> plpython3u
> 2016-03-31 09:36:56 CAT LOG:  terminating any other active server processes
> 2016-03-31 09:36:56 CAT WARNING:  terminating connection because of crash of
> another server process
> 2016-03-31 09:36:56 CAT DETAIL:  The postmaster has commanded this server
> process to roll back the current transaction and exit, because another
> server process exited abnormally and possibly corrupted shared memory.
> 2016-03-31 09:36:56 CAT HINT:  In a moment you should be able to reconnect
> to the database and repeat your command.
> 2016-03-31 09:36:56 CAT WARNING:  terminating connection because of crash of
> another server process
> 2016-03-31 09:36:56 CAT DETAIL:  The postmaster has commanded this server
> process to roll back the current transaction and exit, because another
> server process exited abnormally and possibly corrupted shared memory.
> 2016-03-31 09:36:56 CAT HINT:  In a moment you should be able to reconnect
> to the database and repeat your command.
> 2016-03-31 09:36:56 CAT WARNING:  terminating connection because of crash of
> another server process
> 2016-03-31 09:36:56 CAT DETAIL:  The postmaster has commanded this server
> process to roll back the current transaction and exit, because another
> server process exited abnormally and possibly corrupted shared memory.
> 2016-03-31 09:36:56 CAT HINT:  In a moment you should be able to reconnect
> to the database and repeat your command.
>
> "
>
> I am guessing that my problem might have something to do with the fact that
> the plpython2u language is not installed on the DB - although I am not sure
> why it should it need it, when executing a plpython3 command.  As I
> understand it, Postgres 9.4 accomodates both versions of python.   However I
> have not been able to figure out how to load plpython2u onto the db.  The
> postgres version I installed does not ship with plpython2.dll and I have not
> been able to get hold of a copy. ( Python 2.7 /3.2 and 3.3 are installed on
> my machine, and I am running postgre versions  9.2, 9.3 and 9.4.4 on
> different ports).
>
>
>
>
>
> --
> View this message in context: http://postgresql.nabble.com/Postgres-9-4-4-9-4-6-plpython2-3-intallation-issues-on-a-Windows-7-machine-tp5896157.html
> Sent from the PostgreSQL - general mailing list archive at Nabble.com.
>
>

Hello!

What postgres distr for Win  are you using?

--
Alex Ignatov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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-- 
Alex Ignatov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company