Tom Lane <t...@sss.pgh.pa.us> wrote:
 
> This isn't exactly a trivial matter.  What happens for instance if
> you try to change the limit, and there are already active values
> outside the limit in some processes?
 
I would certainly vote for enforcing on the SET and not causing an
error on the attempt to change the limit.  (Maybe a notice?)  At the
time they set the GUC, they were allowed to do so.  It's a bit like
revoking a user's right to create a table in a schema -- what if
they've already done so?  You leave the table and you don't let them
create another.
 
What problems do you see with that?
 
-Kevin

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