Add resource statistics reporting to ANALYZE VERBOSE.

Previously, log_autovacuum_min_duration utilized dedicated code for
logging resource statistics, such as system and buffer usage during
autoanalyze. However, this logging functionality was not utilized by
ANALYZE VERBOSE.

This commit adds resource statistics reporting to ANALYZE VERBOSE by
reusing the same logging code as autoanalyze.

Author: Anthonin Bonnefoy
Reviewed-by: Masahiko Sawada
Discussion: https://postgr.es/m/CAO6_Xqr__kTTCLkftqS0qSCm-J7_xbRG3Ge2rWhucxQJMJhcRA%40mail.gmail.com

Author: MasahikoSawada

src/backend/commands/analyze.c

@@ -288,7 +288,9 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 				ind;
 	Relation   *Irel;
 	int			nindexes;
-	bool		hasindex;
+	bool		verbose,
+				instrument,
+				hasindex;
 	VacAttrStats **vacattrstats;
 	AnlIndexData *indexdata;
 	int			targrows,
@@ -308,6 +310,9 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 	PgStat_Counter startreadtime = 0;
 	PgStat_Counter startwritetime = 0;
 
+	verbose = (params->options & VACOPT_VERBOSE) != 0;
+	instrument = (verbose || (AmAutoVacuumWorkerProcess() &&
+							  params->log_min_duration >= 0));
 	if (inh)
 		ereport(elevel,
 				(errmsg("analyzing \"%s.%s\" inheritance tree",
@@ -339,8 +344,11 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 	save_nestlevel = NewGUCNestLevel();
 	RestrictSearchPath();
 
-	/* measure elapsed time iff autovacuum logging requires it */
-	if (AmAutoVacuumWorkerProcess() && params->log_min_duration >= 0)
+	/*
+	 * measure elapsed time if called with verbose or if autovacuum logging
+	 * requires it
+	 */
+	if (instrument)
 	{
 		if (track_io_timing)
 		{
@@ -723,17 +731,18 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 	vac_close_indexes(nindexes, Irel, NoLock);
 
 	/* Log the action if appropriate */
-	if (AmAutoVacuumWorkerProcess() && params->log_min_duration >= 0)
+	if (instrument)
 	{
 		TimestampTz endtime = GetCurrentTimestamp();
 
-		if (params->log_min_duration == 0 ||
+		if (verbose || params->log_min_duration == 0 ||
 			TimestampDifferenceExceeds(starttime, endtime,
 									   params->log_min_duration))
 		{
 			long		delay_in_ms;
 			double		read_rate = 0;
 			double		write_rate = 0;
+			char	   *msgfmt;
 			StringInfoData buf;
 			int64		total_blks_hit;
 			int64		total_blks_read;
@@ -785,7 +794,13 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 			 */
 
 			initStringInfo(&buf);
-			appendStringInfo(&buf, _("automatic analyze of table \"%s.%s.%s\"\n"),
+
+			if (AmAutoVacuumWorkerProcess())
+				msgfmt = _("automatic analyze of table \"%s.%s.%s\"\n");
+			else
+				msgfmt = _("finished analyzing table \"%s.%s.%s\"\n");
+
+			appendStringInfo(&buf, msgfmt,
 							 get_database_name(MyDatabaseId),
 							 get_namespace_name(RelationGetNamespace(onerel)),
 							 RelationGetRelationName(onerel));
@@ -805,7 +820,7 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 							 (long long) total_blks_dirtied);
 			appendStringInfo(&buf, _("system usage: %s"), pg_rusage_show(&ru0));
 
-			ereport(LOG,
+			ereport(verbose ? INFO : LOG,
 					(errmsg_internal("%s", buf.data)));
 
 			pfree(buf.data);