Re: Is it databases in general, SQL or Postgresql?

No - I mean when each row of pr (contain) has 'ip' inserted as a  value or
data.

Bob

----- Original Message -----
From: "Alban Hertroys" <alban@magproductions.nl>
To: "Bob Pawley" <rjpawley@shaw.ca>
Cc: "Postgres General" <pgsql-general@postgresql.org>
Sent: Tuesday, November 15, 2005 9:42 AM
Subject: Re: [GENERAL] Is it databases in general, SQL or Postgresql?


> Bob Pawley wrote:
>> Sample 2 below, does not work. From a logical (perhaps naive) extension
>> of Sample 1, I adapted the function to identify which of the serial
>> numbers in table pr is to be transferred to table pi. I am attempting to
>> do this as part of the database structure _not_ as data retrieval.
>>  Could someone explain to me why this isn't acceptable as a simple basic
>> function?
>>  Could someone explain to me what needs to be changed, enhanced or
>> modified to make this database structure work?
>
>> Sample 2
>>             create or replace function base() returns trigger as $$
>>
>>             begin
>>
>>             insert into pi (fluid_id) values (new.fluid_id)
>>
>>             where  pr (contain)  = 'ip';
>
> I suppose you mean "where pr.contain = 'ip'" instead? pr is a table, not a
> function.
>
> You'd be in some interesting trouble if there'd be a function pr(text)
> returning text - it would evaluate the function with the content of your
> column and compare the result to your string.
>
>> ERROR:  syntax error at or near "where" at character 41
>>
>> QUERY:  insert into pi (fluid_id) values ( $1 ) where pr (contain) = 'ip'
>>
>> CONTEXT:  PL/pgSQL function "base" line 2 at SQL statement
>
>
> --
> Alban Hertroys