Carlos Mennens <carlos(dot)mennens(at)gmail(dot)com> writes:
> 1. Do I need to remove all the table constraints or is there a way to
> rename them?
I believe you can rename the underlying indexes and the constraints will
follow them. (This works in HEAD anyway, not sure how far back.)
> 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