Re: Expression on an Expression alias

On Fri, Apr 18, 2008 at 4:31 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> "Mike Ellsworth" <younicycle(at)gmail(dot)com> writes:
> > The *effect* I'd like is to 'reuse' FV1, ~
>
> > SELECT
> > fv_test.acct_val AS acct_val,
> > fv_test.time AS time,
> > fv_test.i AS interest_rate,
> > FV(fv_test.acct_val,fv_test.i,fv_test.time) AS FV1,
> > FV1 *2 AS FV2,
> > FV1 *3 AS FV3
> > FROM "hrcommu"."fv_test

< The SELECT
> expressions are notionally computed in parallel and so can't refer
> to each other.

Thanks -now I get it.

Wish I didn't have 15,000 of these little quicksand pits to ungnarl.