*** pgsql/src/backend/utils/misc/postgresql.conf.sample	2010/07/03 20:43:58	1.289
--- pgsql/src/backend/utils/misc/postgresql.conf.sample	2010/07/03 21:23:58	1.290
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*** 188,193 ****
--- 188,194 ----
  #max_wal_senders = 0		# max number of walsender processes
  #wal_sender_delay = 200ms	# walsender cycle time, 1-10000 milliseconds
  #wal_keep_segments = 0		# in logfile segments, 16MB each; 0 disables
+ #vacuum_defer_cleanup_age = 0	# number of xacts by which cleanup is delayed
  
  # - Standby Servers -
  
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*** 198,204 ****
  #max_standby_streaming_delay = 30s	# max delay before canceling queries
  					# when reading streaming WAL;
  					# -1 allows indefinite delay
- #vacuum_defer_cleanup_age = 0		# number of transactions by which cleanup is deferred
  
  
  #------------------------------------------------------------------------------
--- 199,204 ----