public inbox for [email protected]
help / color / mirror / Atom feedFrom: shveta malik <[email protected]>
To: Amit Kapila <[email protected]>
Cc: Bertrand Drouvot <[email protected]>
Cc: Masahiko Sawada <[email protected]>
Cc: Zhijie Hou (Fujitsu) <[email protected]>
Cc: Dilip Kumar <[email protected]>
Cc: Peter Smith <[email protected]>
Cc: Nisha Moond <[email protected]>
Cc: Hayato Kuroda (Fujitsu) <[email protected]>
Cc: Bharath Rupireddy <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: Bruce Momjian <[email protected]>
Cc: Ashutosh Sharma <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: pgsql-hackers <[email protected]>
Cc: Ajin Cherian <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: shveta malik <[email protected]>
Subject: Re: Synchronizing slots from primary to standby
Date: Fri, 19 Jan 2024 11:46:51 +0530
Message-ID: <CAJpy0uD+ODUF+D0GX38F_UQYTqA8wvTEUPOCBa-9guLLRMhFWQ@mail.gmail.com> (raw)
In-Reply-To: <CAA4eK1JFhbBf-LywUU0YJUTcKTFjZvbXi-42DwCd-xojWKhRXA@mail.gmail.com>
References: <CAA4eK1L74EUU7+Dr11joY+Xact_MsjZu9G12sX+vRUWJsptP8Q@mail.gmail.com>
<CAA4eK1+ORhnb2zUUpO_FcgWUUbwvQX5+=tdCehx7x2nB2x8VMg@mail.gmail.com>
<CAD21AoCoX+jhy_i3v+T2s78NG_0HH1oXOUiTOWhDdxVPBtDHKA@mail.gmail.com>
<CAJpy0uAwz9iNw3=5QC8S3z8Bf-w0z27rE32SFxjDMer7aTQMPg@mail.gmail.com>
<CAA4eK1+q8R=yEpTMiOZ_Xksdd_Jg3SXvBMxRutHQtkCbdeK_yQ@mail.gmail.com>
<CAJpy0uAU+nzufQwSzyB2YmhPHHn71_=1zkauP4Ra32a_eqbcig@mail.gmail.com>
<CAA4eK1KtwFg6Mr1MRnHUUfPotzc2=5UCTq_D2t8x0PM1Lyhk8g@mail.gmail.com>
<CAD21AoA03f0QKYjiSymGcnROvh1X-3YSqyB-19mkRXt5dfaxFw@mail.gmail.com>
<CAJpy0uCneiKeNuz3B91Wf2LRxAenD3fpaxYfdL09y9qHmvVp+w@mail.gmail.com>
<CAJpy0uCJ7MKgZnKLAACd-AXN0VbWM5gVJ+GRJ1Za_A2UmF3R0A@mail.gmail.com>
<[email protected]>
<CAJpy0uBrBc+YNxCGwCjXR+9UJZqM3QvjNq86cBy4K7kp_EXxhQ@mail.gmail.com>
<CAA4eK1JFhbBf-LywUU0YJUTcKTFjZvbXi-42DwCd-xojWKhRXA@mail.gmail.com>
On Fri, Jan 19, 2024 at 11:23 AM Amit Kapila <[email protected]> wrote:
>
> > > 5 === (coming from v62-0002)
> > > + Assert(tuplestore_tuple_count(res->tuplestore) == 1);
> > >
> > > Is it even possible for the related query to not return only one row? (I think the
> > > "count" ensures it).
> >
> > I think you are right. This assertion was added sometime back on the
> > basis of feedback on hackers. Let me review that again. I can consider
> > this comment in the next version.
> >
>
> OTOH, can't we keep the assert as it is but remove "= 1" from
> "count(*) = 1" in the query. There shouldn't be more than one slot
> with same name on the primary. Or, am I missing something?
There will be 1 record max and 0 record if the primary_slot_name is
invalid. Keeping 'count(*)=1' gives the benefit that it will straight
away give us true/false indicating if we are good or not wrt
primary_slot_name. I feel Assert can be removed and we can simply
have:
if (!tuplestore_gettupleslot(res->tuplestore, true, false, tupslot))
elog(ERROR, "failed to fetch primary_slot_name tuple");
thanks
Shveta
view thread (119+ messages) latest in thread
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: [email protected]
Cc: [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected]
Subject: Re: Synchronizing slots from primary to standby
In-Reply-To: <CAJpy0uD+ODUF+D0GX38F_UQYTqA8wvTEUPOCBa-9guLLRMhFWQ@mail.gmail.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox