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Thread: createlang plpythonu fails on 64bit windows

createlang plpythonu fails on 64bit windows

From
"Massa, Harald Armin"
Date:
Hello,

I am using PostgreSQL 9.0.1 on Windows 7.0 Ultimate 64bit.

I tried to use plpython within one of my databases, but installing the language fails with:

C:\Program Files\PostgreSQL\9.0\lib>createlang --dbname=ibox --echo -U postgres plpythonu
SELECT oid FROM pg_catalog.pg_language WHERE lanname = 'plpythonu';
CREATE LANGUAGE "plpythonu";
createlang: Installation der Sprache fehlgeschlagen: FEHLER:  konnte Bibliothek »C:/Program Files/PostgreSQL/9.0/lib/pl
python.dll« nicht laden: %1 is not a valid Win32 application.


(which translated to english is roughly:
createlang: Installation of language failed: ERROR:  could not load library »C:/Program Files/PostgreSQL/9.0/lib/plpython.dll« : %1 is not a valid Win32 application.

Should'nt plplython.dll be a valid win32_x64 application when being loaded into PostgreSQL 64bit? Could this be the source of the error? (as in: "plpython.dll is 32 bit, PostgreSQL is 64bit, so no loading of 32-bit-module into 64-bit-process?)

Harald

-- 
GHUM GmbH
Harald Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607

Amtsgericht Stuttgart, HRB 734971
-
persuadere.
et programmare

Re: createlang plpythonu fails on 64bit windows

From
Dave Page
Date:
On Sun, Oct 24, 2010 at 10:02 AM, Massa, Harald Armin <chef@ghum.de> wrote:
> (which translated to english is roughly:
> createlang: Installation of language failed: ERROR:  could not load library
> »C:/Program Files/PostgreSQL/9.0/lib/plpython.dll« : %1 is not a valid
> Win32 application.
> Should'nt plplython.dll be a valid win32_x64 application when being loaded
> into PostgreSQL 64bit? Could this be the source of the error? (as in:
> "plpython.dll is 32 bit, PostgreSQL is 64bit, so no loading of 32-bit-module
> into 64-bit-process?)

plpython.dll is unlikely to be 32bit unless you're using the 32bit
Postgres build (it's built along with the rest of the server, so...).
What version of Python do you have? A quick glance at the build script
shows we're using 2.6, and we always use the ActiveState builds.

--
Dave Page
Blog: http://pgsnake.blogspot.com
Twitter: @pgsnake

EnterpriseDB UK: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

Re: createlang plpythonu fails on 64bit windows

From
"Massa, Harald Armin"
Date:
For the record:

> Should'nt plplython.dll be a valid win32_x64 application when being loaded
> into PostgreSQL 64bit? Could this be the source of the error? (as in:
> "plpython.dll is 32 bit, PostgreSQL is 64bit, so no loading of 32-bit-module
> into 64-bit-process?)

plpython.dll is unlikely to be 32bit unless you're using the 32bit
Postgres build (it's built along with the rest of the server, so...).
What version of Python do you have? A quick glance at the build script
shows we're using 2.6, and we always use the ActiveState builds.

so, as in IM with Dave:

it destilles down that 64bit PostgreSQL needs a 64bit Python installation on the machine, as plpython.dll pulls in python26.dll; which is found within the path.

I installed Python (64bit edition) in parallel to an existing 32bit version, and the 32bit keeps working despite the c:\windows\system32\python26.dll is a 64bit library ... 

(at least up to now)

PostgreSQL accepts the createlang command for plpython when Python 64 bit is present.

Harald


-- 
GHUM GmbH
Harald Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607

Amtsgericht Stuttgart, HRB 734971
-
persuadere.
et programmare