Re: Are piped columns indexable

On Wed, Mar 12, 2008 at 4:38 PM, Mark Steben <msteben(at)autorevenue(dot)com> wrote:
> Given table t with columns a, b, c, d
>
> And index on t using btree (a,b)
>
> Is this indexable:
>
> Select * from t where a || b = '124cab' (or whatever)
>
> Assume a and b are defined as char(3)
> I have tried various op classes and so far have just gotten sequential scans

create index t_idx on t((a || b));

:-)

merlin