On Wed, Aug 11, 2010 at 8:35 AM, Davor J. <DavorJ@live.com> wrote:
> Suppose you have a table CREATE TABLE tbl_formulas (formula_id integer,
> formula text)
>
> The formula field can be any postgres-supported mathematical operation which
> references some input data with $1 like "sin($1) + cos($1)" and returns one
> numeric value. Such formulas should be used in the SELECT clause and should
> be executed quickly for each data (real/double).
why do you need to put the formula into a table...how about making functions?
merlin