Maximum number of editions - where is the limit?

Question

Using Oracle 11.2.0.3 SE
With regards to edition based redefinition, is anyone aware about a limit to the number of editions one can have in a single database?
I cound't find any hint to that in the doc http://docs.oracle.com/cd/E11882_01/appdev.112/e25518/adfns_editions.htm
Let's assume we have 1500 editions and switch the current session to one of them. Each edition has a different version of a certain packages.
I'm just talking about having several versions of pl/sql code (triggers, packages, etc.). But not about cross edition triggers.
Is anybody aware of any issues when useing multiple editions, like performance related issues?

Answer 1

I decided to run some tests.
using code similar to this one
begin
  for i in 1..1000 loop
    execute immediate 'create edition Test'||to_char(i,'FM0000')||' AS CHILD OF Test'||to_char(i-1,'FM0000');
  end loop;
end;
This worked.
Then I decided to create some more editions. And finally got the expected error message.
ORA-38812: Höchstzahl der Editions erreicht
In my database (11.2.0.3) the max number of editions is 2000.
select count(*) from dba_editions;
  COUNT(*)
      2000
Such a clean value looks like a parameter setting. But it seems that this is not exposed to us.
select * from v$parameter where regexp_like(name,'edition');
no rows returned