Re: Rename or Re-Create Constraints?

On Fri, Apr 8, 2011 at 8:35 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> I believe you can rename the underlying indexes and the constraints will
> follow them.  (This works in HEAD anyway, not sure how far back.)

I'm sorry but I don't understand what that means or how to relate that
to a SQL command to rename the constraint. Do you have an example of
how that command would look?

>> 2. When renaming the table, is there a way to rename both the table
>> and all associated constraints?
>
> No, there's nothing automatic for that.  IIRC there used to be code to
> try to do this when you renamed a single column; but we took it out,
> probably because it risked unexpected failures due to index name
> collisions.
>
>                        regards, tom lane
>