Thread

[PATCH v1 11/12] prune_xid-hist: transfer data to shared histogram

Renan Alves Fonseca <renanfonseca@gmail.com> — 2025-05-20T11:46:01Z

---
 src/backend/access/heap/vacuumlazy.c         | 1 +
 src/backend/utils/activity/pgstat_relation.c | 5 ++++-
 src/include/pgstat.h                         | 2 +-
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/backend/access/heap/vacuumlazy.c b/src/backend/access/heap/vacuumlazy.c
index afd57e31f5b..a3698593156 100644
--- a/src/backend/access/heap/vacuumlazy.c
+++ b/src/backend/access/heap/vacuumlazy.c
@@ -940,6 +940,7 @@ heap_vacuum_rel(Relation rel, VacuumParams *params,
 						 Max(vacrel->new_live_tuples, 0),
 						 vacrel->recently_dead_tuples +
 						 vacrel->missed_dead_tuples,
+						 &vacrel->prune_xid_hist,
 						 starttime);
 	pgstat_progress_end_command();
 
diff --git a/src/backend/utils/activity/pgstat_relation.c b/src/backend/utils/activity/pgstat_relation.c
index 06d97d3e0fb..ee49a2816e1 100644
--- a/src/backend/utils/activity/pgstat_relation.c
+++ b/src/backend/utils/activity/pgstat_relation.c
@@ -210,7 +210,7 @@ pgstat_drop_relation(Relation rel)
 void
 pgstat_report_vacuum(Oid tableoid, bool shared,
 					 PgStat_Counter livetuples, PgStat_Counter deadtuples,
-					 TimestampTz starttime)
+					 const PruneXidHistogramTransient *prune_xid_hist, TimestampTz starttime)
 {
 	PgStat_EntryRef *entry_ref;
 	PgStatShared_Relation *shtabentry;
@@ -261,6 +261,8 @@ pgstat_report_vacuum(Oid tableoid, bool shared,
 		tabentry->total_vacuum_time += elapsedtime;
 	}
 
+	pgstat_update_shared_prune_xid_histogram(tabentry, prune_xid_hist);
+
 	pgstat_unlock_entry(entry_ref);
 
 	/*
@@ -1119,6 +1121,7 @@ pgstat_relation_flush_cb(PgStat_EntryRef *entry_ref, bool nowait)
 
 	tabentry->live_tuples += lstats->counts.delta_live_tuples;
 	tabentry->dead_tuples += lstats->counts.delta_dead_tuples;
+	pgstat_update_shared_prune_xid_histogram(tabentry, &lstats->counts.prune_xid_hist);
 	tabentry->mod_since_analyze += lstats->counts.changed_tuples;
 
 	/*
diff --git a/src/include/pgstat.h b/src/include/pgstat.h
index 698b42bf66b..2d577fefa28 100644
--- a/src/include/pgstat.h
+++ b/src/include/pgstat.h
@@ -679,7 +679,7 @@ extern void pgstat_unlink_relation(Relation rel);
 
 extern void pgstat_report_vacuum(Oid tableoid, bool shared,
 								 PgStat_Counter livetuples, PgStat_Counter deadtuples,
-								 TimestampTz starttime);
+								 const PruneXidHistogramTransient *prune_xid_hist, TimestampTz starttime);
 extern void pgstat_report_analyze(Relation rel,
 								  PgStat_Counter livetuples, PgStat_Counter deadtuples,
 								  bool resetcounter, TimestampTz starttime);
-- 
2.47.0


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Content-Type: text/x-patch
Content-Disposition: attachment; filename=v1-0012-prune_xid-hist-tests.patch