Re: plpython question

From: Sim Zacks <sim(at)compulab(dot)co(dot)il>
To: pgsql-general(at)postgresql(dot)org
Cc: Hagen Hoepfner <Hagen(dot)Hoepfner(at)gmx(dot)de>
Subject: Re: plpython question
Date: 2004-10-19 08:35:00
Message-ID: 142553267.20041019103500@compulab.co.il
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Thanks for the link.
I had already looked at that page, and it gives basically no help at
all. I think the problem is how Pgadmin handles new lines or something
like that. because I can't get any 2 line program to work.

I also tried the code in PSQL and it worked when I indented manually
(hitting the spacebar 5 times). I tried that in PGAdmin and it also
failed.

Also in PSql it only worked with non-named parameters. So my list was
(int,int,int) and I referred to them as args[0-2]

It looks like plpython support hasn't hit the mainstream yet.

Thank You
Sim Zacks
IT Manager
CompuLab
04-829-0145 - Office
04-832-5251 - Fax

________________________________________________________________________________

Me again ;-)

I do not have a running postgresql with scripting support so i googled
for some ideas ;-)

The first syntax error must arrive while parsing the argument list,
is'nt it. Postgres means Syntax error at "int". The problem is, that you
can not use the function as you do in python. The argument list contains
only the data types: here ( int, int, int ). The arguments are given by
args[0], args[1] and so on. Furthermore the "code" of your function has
to be encapsulates in '...' . So you can not use '...' to encapsulate
strings.

For more Information take a look at:

http://www.signal42.com/pgsql/plpython.html#PLPYTHON-FUNCS

Sim Zacks wrote:

>I had tried it exactly the way I wrote it in python as a function and it
>worked.
>
>Just in case I tried changing it to return ("OK") as you suggested and
>got the same error.
>
>Thank You
>Sim Zacks
>IT Manager
>CompuLab
>04-829-0145 - Office
>04-832-5251 - Fax
>
>________________________________________________________________________________
>
>I don't know plpythonu but python ;-) As I really understood your
>problem you want to return strings. In Pytho return("OK" ) should work ;-)
>
>Hagen
>
>Sim Zacks wrote:
>
>
>
>>I have the following function and I am getting an invalid syntax error
>>when I try to run it. I have tried the function a number of ways
>>including with named parameters and non-named parameters using the
>>args array. I also tried it with a tab at the beginning and without.
>>I've also tried with the $$ and with single quotes and the double
>>single quoting all the existing single quotes.
>>
>>Any help would be greatly appreciated.
>>
>>create or replace function BatchBalanceStatus(balance int, needed int, freestock int) returns varchar as
>>$$
>> if balance < 0:
>> return 'Unhandled'
>> elif freestock >= needed:
>> return 'OK'
>> else:
>> return 'Ordered'
>>$$ language plpythonu
>>
>>Thank You
>>Sim Zacks
>>IT Manager
>>CompuLab
>>04-829-0145 - Office
>>04-832-5251 - Fax
>>
>>
>>---------------------------(end of broadcast)---------------------------
>>TIP 6: Have you searched our list archives?
>>
>> http://archives.postgresql.org
>>
>>
>>
>>
>>
>>
>
>
>
>

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