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Add information about WAL buffers being full to EXPLAIN (WAL)

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This is similar to ce5bcc4a9f, relying on the addition of
wal_buffers_full to WalUsage.  This time, the information is added to
the output generated by EXPLAIN (WAL).

Author: Bertrand Drouvot
Reviewed-by: Ilia Evdokimov
Discussion: https://postgr.es/m/Z6SOha5YFFgvpwQY@ip-10-97-1-34.eu-west-3.compute.internal
This commit is contained in:
Michael Paquier
2025-02-17 14:50:33 +09:00
parent ce5bcc4a9f
commit 320545bfcf
2 changed files with 9 additions and 3 deletions
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7
src/backend/commands/explain.c
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@ -4242,7 +4242,7 @@ show_wal_usage(ExplainState *es, const WalUsage *usage)
{
/* Show only positive counter values. */
if ((usage->wal_records > 0) || (usage->wal_fpi > 0) ||
(usage->wal_bytes > 0))
(usage->wal_bytes > 0) || (usage->wal_buffers_full > 0))
{
ExplainIndentText(es);
appendStringInfoString(es->str, "WAL:");
@ -4256,6 +4256,9 @@ show_wal_usage(ExplainState *es, const WalUsage *usage)
if (usage->wal_bytes > 0)
appendStringInfo(es->str, " bytes=" UINT64_FORMAT,
usage->wal_bytes);
if (usage->wal_buffers_full > 0)
appendStringInfo(es->str, " buffers full=%lld",
(long long) usage->wal_buffers_full);
appendStringInfoChar(es->str, '\n');
}
}
@ -4267,6 +4270,8 @@ show_wal_usage(ExplainState *es, const WalUsage *usage)
usage->wal_fpi, es);
ExplainPropertyUInteger("WAL Bytes", NULL,
usage->wal_bytes, es);
ExplainPropertyInteger("WAL Buffers Full", NULL,
usage->wal_buffers_full, es);
}
}