Re: query question really cant give a summary here so read the body ;-)

Rhys Stewart wrote:
> The example I provided earlier was a very simplified model of the table
> I'm working with after a self join. The table in question contains
> geographic data (linestrings)

PostGIS LINESTRINGs?

 > and I have written a function to return a
> textual representation

Like ST_AsEWKT()?

 > so that  I can easily identify lines with similar
> configuration. I want to now  select  lines that are in close proximity
> to each other and have the same configuration. So this requires a self
> join (afaik). So, short of a function like the one that was posited
> earlier, is there a method using just plain old sql to get the results I
> desire?

Surely, you don't mean ST_Distance()?

What do you mean by "similar configuration"?

Colin