"Daniel Verite" <daniel(at)manitou-mail(dot)org> writes:
> Sergey Konoplev wrote:
>> What about PL/pgSQL wrapper function for CREATE DATABASE with database
>> name check and SECURITY DEFINER option.
> Not possible because CREATE DATABASE can't be executed within a function (nor
> within a transaction).
Note that the reasons why that's true are equally good reasons to not
allow triggers or any other user-added operations for CREATE DATABASE.
regards, tom lane