I check the “alter database, alter role " and "set " command, but none of
them can set the parameters to all the existing sessions. do we have a
way to do that? looks the "assign_hook" can be used to customize this, is
it a right way to do that?
On Wed, Jun 12, 2019 at 4:25 PM Pavel Stehule
wrote:
> Hi
>
> st 12. 6. 2019 v 9:58 odesílatel alex lock napsal:
>
>> I check the “alter database, alter role " and "set " command, but none of
>> them can set the parameters to all the existing sessions.
The cursor means something like declare c cursor for select * from t;
The holdable cursor means declare c cursor WITH HOLD for select * from t;
Holdable cursor is good at transaction, user can still access it after the
transaction is commit. But it is bad at it have to save all the record to
On Wed, Apr 24, 2019 at 11:30 PM Tom Lane wrote:
> alex lock writes:
> > The cursor means something like declare c cursor for select * from t;
> > The holdable cursor means declare c cursor WITH HOLD for select * from t;
>
> > Holdable cursor is good at transaction
On Thu, Apr 25, 2019 at 9:53 AM alex lock wrote:
>
>
> that's something I want to change, as I said at the beginning. include
> avoid some memory release (like the EState and so on), snapshot release.
>
>
I check my original statement, I found "snapshot release"
