Stored Procedure table/column args

From: Bret Stern <bret_stern(at)machinemanagement(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Stored Procedure table/column args
Date: 2013-09-03 01:06:26
Message-ID: 1378170386.3581.15.camel@centos-dev.machinemanagement.com
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'psuedo

Can you create stored procedures that are built from parameters as
below, or does this defeat the pre-compiled purpose of an SP?

create function item_exists (tbl character varying, col character
varying, col_val character varying)

DECLARE
x integer;

PERFORM col FROM tbl
WHERE col="'" + col_val + "'"
IF FOUND THEN
x := 1;
else
x := 0;
end if;

RETURN x;

....

left out some syntax, but should deliver the idea

trying to build build a generic "check for existing", that's not
specific to a specific table/column without returning recordset
object overhead

any better ways
thanks

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