On Sat, Apr 18, 2020 at 6:16 AM Amit Kapila <amit.kapil...@gmail.com> wrote:
>
> On Fri, Apr 17, 2020 at 6:45 PM Peter Eisentraut
> <peter.eisentr...@2ndquadrant.com> wrote:
> >
> > On 2020-04-14 05:57, Amit Kapila wrote:
> > > Peter E, others, any suggestions on how to move forward? I think here
> > > we should follow the rule "follow the style of nearby code" which in
> > > this case would be to have one space after each field as we would like
> > > it to be closer to the "Buffers" format. It would be good if we have
> > > a unified format among all Explain stuff but we might not want to
> > > change the existing things and even if we want to do that it might be
> > > a broader/bigger change and we should do that as a PG14 change. What
> > > do you think?
> >
> > If looks like shortening to fpw= and using one space is the easiest way
> > to solve this issue.
> >
>
> I am fine with this approach and will change accordingly. I will wait
> for a few days (3-4 days) to see if someone shows up with either an
> objection to this or with a better idea for the display of WAL usage
> information.
That was also my preferred alternative. PFA a patch for that. I also
changed to "fpw" for the non textual output for consistency.
diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c
index 7ae6131676..9cc1b13b76 100644
--- a/src/backend/commands/explain.c
+++ b/src/backend/commands/explain.c
@@ -3350,13 +3350,13 @@ show_wal_usage(ExplainState *es, const WalUsage *usage)
appendStringInfoString(es->str, "WAL:");
if (usage->wal_records > 0)
- appendStringInfo(es->str, " records=%ld",
+ appendStringInfo(es->str, " records=%ld",
usage->wal_records);
if (usage->wal_fpw > 0)
- appendStringInfo(es->str, " full page writes=%ld",
+ appendStringInfo(es->str, " fpw=%ld",
usage->wal_fpw);
if (usage->wal_bytes > 0)
- appendStringInfo(es->str, " bytes=" UINT64_FORMAT,
+ appendStringInfo(es->str, " bytes=" UINT64_FORMAT,
usage->wal_bytes);
appendStringInfoChar(es->str, '\n');
}
@@ -3365,7 +3365,7 @@ show_wal_usage(ExplainState *es, const WalUsage *usage)
{
ExplainPropertyInteger("WAL records", NULL,
usage->wal_records, es);
- ExplainPropertyInteger("WAL full page writes", NULL,
+ ExplainPropertyInteger("WAL fpw", NULL,
usage->wal_fpw, es);
ExplainPropertyUInteger("WAL bytes", NULL,
usage->wal_bytes, es);
