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(at)magproductions(dot)nl>
To: "Bob Pawley" <rjpawley(at)shaw(dot)ca>
Cc: "Postgres General" <pgsql-general(at)postgresql(dot)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