Re: Integration of Psycopg with XTA

From: Christian Ferrari <camauz(at)yahoo(dot)com>
To: psycopg(at)lists(dot)postgresql(dot)org
Subject: Re: Integration of Psycopg with XTA
Date: 2018-10-05 16:02:58
Message-ID: 602182297.6960405.1538755378178@mail.yahoo.com
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In a previous mail I stated something like "the name of the method doesn't matter"...... after better thinking I realized a decent name might be better than other ones...Let me say:
get_native_conn()get_native_connection()
might be better than "get_something_pgconn" because the same type of method could be useful for other databases in the future...More or less all the databases use a "native connection", only PostgreSQL uses "PGconn connection".

Have a good w.e.Ch.F.

-------------------------------------------------------------
Good design can't stop bad implementation

Il giovedì 4 ottobre 2018, 12:36:53 CEST, Federico Di Gregorio <fog(at)dndg(dot)it> ha scritto:

On 10/04/2018 12:30 PM, Daniele Varrazzo wrote:
> On Thu, Oct 4, 2018 at 11:24 AM Federico Di Gregorio<fog(at)dndg(dot)it>  wrote:
>> On 10/04/2018 12:13 PM, Daniele Varrazzo wrote:
>>> On Thu, Oct 4, 2018 at 10:33 AM Federico Di Gregorio<fog(at)dndg(dot)it>
wrote:
>>>> @Daniele, I see that a capsule has an implicit state, "invalid" if the
>>>> pointer inside it is null. Does it makes sense to reuse the same
capsule
>>>> and keep a reference to it to be able to invalidate it when the
>>>> connection is closed?
>>> I can take a look at it but I suspect it's a lot of work for a feature
>>> very rarely used.
>> Nah, I can do it. I was just asking for your opinion. :D
> I don't know much about the capsule object, its life cycle etc. Yes,
> not a huge deal saving it in the connection state and returning always
> the same. I just wonder if it's worth the effort.

I suppose it helps to debug the situation where the capsule is used
after the connection has been closed. Instead of a BOOM you get a nice
exception (if the consumer checks for it, obviously).

I'll work on this in my repo and if everything works we can integrate it
for 2.8.

federico

--
Federico Di Gregorio                        federico(dot)digregorio(at)dndg(dot)it
DNDG srl                                                  http://dndg.it
  Gli avvoltoi cinesi si nutrono di arte, ma possono anche mangiare
    i `domani'.                                        -- Haruki Murakami

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