committs: mergme: add comment about wal logging committs in RecordTransactionCommitcommit_ts

1 files changed, 5 insertions, 0 deletions

diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c
index 9f58d975bc..5c3a57d315 100644
--- a/src/backend/access/transam/xact.c
+++ b/src/backend/access/transam/xact.c
@@ -1118,6 +1118,11 @@ RecordTransactionCommit(void)
 		}
 	}
 
+	/*
+	 * We don't need to log the commit timestamp separately since the commit
+	 * record logged above has all the necessary action to set the timestamp
+	 * again.
+	 */
 	TransactionTreeSetCommitTimestamp(xid, nchildren, children,
 									  xactStopTimestamp, 0, false);