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Re: Create temporary function

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Steve Crawford <scrawford(at)pinpointresearch(dot)com>
Cc: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Create temporary function
Date: 2008-04-23 18:33:52
Message-ID: 15191.1208975632@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-general
Steve Crawford <scrawford(at)pinpointresearch(dot)com> writes:
> I have recently run across situations that might benefit from the 
> ability to create a temporary function.

You can do that today, as long as you don't mind schema-qualifying
uses of the function:

regression=# create function pg_temp.tfunc(int) returns int as 
regression-# $$ select $1 + 1 $$ language sql;
CREATE FUNCTION
regression=# select pg_temp.tfunc(42);
 tfunc 
-------
    43
(1 row)

Without the qualification, the function won't be found, even if
you put pg_temp into your search path explicitly.  That's intentional
because of the risk of trojan horses ...

			regards, tom lane

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