On Thu, Jul 26, 2012 at 2:56 PM, Anderson C. Carniel
<accarniel@gmail.com> wrote:
>
> -> I need to set a new data type specific, as the PostGIS. I saw that in
> PostgreSQL's Documentation there is a User-Defined Types. This is the best
> way to define a new data type? Using this approach, can I define the way
> queries are processed and thus define new operators? Or would I define
> functions via pgsql for this? It was not clear to me.
you can create new data types, new operators, new types of indexes if
you want... the question is, what are you trying to do?
> -> Also, how could I make changes to the SQL language in PostgreSQL?
>
what kind of changes?
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