Re: [HACKERS] logical decoding of two-phase transactions

From: Greg Nancarrow <gregn4422(at)gmail(dot)com>
To: Peter Smith <smithpb2250(at)gmail(dot)com>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, "tanghy(dot)fnst(at)fujitsu(dot)com" <tanghy(dot)fnst(at)fujitsu(dot)com>, Ajin Cherian <itsajin(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [HACKERS] logical decoding of two-phase transactions
Date: 2021-07-19 05:27:57
Message-ID: CAJcOf-ckGONzyAj0Y70ju_tfLWF819JYb=dv9p5AnoZxm50j0g@mail.gmail.com
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On Wed, Jul 14, 2021 at 6:33 PM Peter Smith <smithpb2250(at)gmail(dot)com> wrote:
>
> Please find attached the latest patch set v97*
>

I couldn't spot spot any significant issues in the v97-0001 patch, but
do have the following trivial feedback comments:

(1) doc/src/sgml/protocol.sgml
Suggestion:

BEFORE:
+ contains a Stream Prepare or Stream Commit or Stream Abort message.
AFTER:
+ contains a Stream Prepare, Stream Commit or Stream Abort message.

(2) src/backend/replication/logical/worker.c
It seems a bit weird to add a forward declaration here, without a
comment, like for the one immediately above it

/* Compute GID for two_phase transactions */
static void TwoPhaseTransactionGid(Oid subid, TransactionId xid, char
*gid, int szgid);
-
+static int apply_spooled_messages(TransactionId xid, XLogRecPtr lsn);

(3) src/backend/replication/logical/worker.c
Other DEBUG1 messages don't end with "."

+ elog(DEBUG1, "apply_handle_stream_prepare: replayed %d
(all) changes.", nchanges);

Regards,
Greg Nancarrow
Fujitsu Australia

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