diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c
index 2f68df4..2124e25 100644
*** a/src/backend/commands/vacuum.c
--- b/src/backend/commands/vacuum.c
*************** vacuum_rel(Oid relid, VacuumStmt *vacstm
*** 851,856 ****
--- 851,864 ----
  	{
  		PopActiveSnapshot();
  		CommitTransactionCommand();
+ 
+ 		if (IsAutoVacuumWorkerProcess() && Log_autovacuum_min_duration >= 0)
+ 		{
+ 		ereport(INFO,
+ 			(errmsg("skipping \"%s\" --- cannot open or obtain lock",
+ 					RelationGetRelationName(onerel))));
+ 		}
+ 
  		return;
  	}