Re: list of TransactionIds

Amit Kapila <amit.kapila16@gmail.com>

From: Amit Kapila <amit.kapila16@gmail.com>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Pg Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-05-16T02:28:37Z
Lists: pgsql-hackers
On Sun, May 15, 2022 at 5:05 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
>
> On 2022-May-14, Amit Kapila wrote:
>
> > On Sat, May 14, 2022 at 1:57 AM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> > >
> > > We didn't have any use of TransactionId as members of List, until
> > > RelationSyncEntry->streamed_txns was introduced (464824323e57, pg14).
> > > It's currently implemented as a list of int.  This is not wrong at
> > > present, but it may soon be, and I'm sure it rubs some people the wrong
> > > way.
> > >
> > > But is the rubbing way wrong enough to add support for TransactionId in
> > > pg_list.h, including, say, T_XidList?
> >
> > +1. I don't know if we have a need for this at other places but I feel
> > it is a good idea to make its current use better.
>
> I hesitate to add this the day just before beta.  This is already in
> pg14, so maybe it's not a big deal if pg15 remains the same for the time
> being.  Or we can change it for beta2.  Or we could just punt until
> pg16.  Any preferences?
>

I prefer to do this for pg16 unless we see some bug due to this.

-- 
With Regards,
Amit Kapila.



Commits

  1. Use proper macro to access TransactionId

  2. Implement List support for TransactionId