update postgresql.conf for postgresql 15.1

postgresql.conf

@@ -133,7 +133,7 @@ shared_buffers = 512MB			# min 128kB
 # Caution: it is not advisable to set max_prepared_transactions nonzero unless
 # you actively intend to use prepared transactions.
 #work_mem = 4MB				# min 64kB
-#hash_mem_multiplier = 1.0		# 1-1000.0 multiplier on hash table work_mem
+#hash_mem_multiplier = 2.0		# 1-1000.0 multiplier on hash table work_mem
 #maintenance_work_mem = 64MB		# min 1MB
 #autovacuum_work_mem = -1		# min 1MB, or -1 to use maintenance_work_mem
 #logical_decoding_work_mem = 64MB	# min 64kB
@@ -144,7 +144,7 @@ shared_buffers = 512MB			# min 128kB
 					#   sysv
 					#   windows
 					# (change requires restart)
-dynamic_shared_memory_type = posix	# the default is the first option
+dynamic_shared_memory_type = posix	# the default is usually the first option
 					# supported by the operating system:
 					#   posix
 					#   sysv
@@ -216,7 +216,8 @@ max_parallel_workers = 4		# maximum number of max_worker_processes that
 #full_page_writes = on			# recover from partial page writes
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
-#wal_compression = off			# enable compression of full-page writes
+#wal_compression = off			# enables compression of full-page writes;
+					# off, pglz, lz4, zstd, or on
 #wal_init_zero = on			# zero-fill new WAL files
 #wal_recycle = on			# recycle WAL files
 #wal_buffers = -1			# min 32kB, -1 sets based on shared_buffers
@@ -237,10 +238,19 @@ max_parallel_workers = 4		# maximum number of max_worker_processes that
 max_wal_size = 1GB
 min_wal_size = 80MB
 
+# - Prefetching during recovery -
+
+#recovery_prefetch = try		# prefetch pages referenced in the WAL?
+#wal_decode_buffer_size = 512kB		# lookahead window used for prefetching
+					# (change requires restart)
+
 # - Archiving -
 
 #archive_mode = off		# enables archiving; off, on, or always
 				# (change requires restart)
+#archive_library = ''		# library to use to archive a logfile segment
+				# (empty string indicates archive_command should
+				# be used)
 #archive_command = ''		# command to use to archive a logfile segment
 				# placeholders: %p = path of file to archive
 				#               %f = file name only
@@ -419,6 +429,7 @@ effective_cache_size = 2GB
 					# JOIN clauses
 #plan_cache_mode = auto			# auto, force_generic_plan or
 					# force_custom_plan
+#recursive_worktable_factor = 10.0	# range 0.001-1000000
 
 
 #------------------------------------------------------------------------------
@@ -428,14 +439,15 @@ effective_cache_size = 2GB
 # - Where to Log -
 
 #log_destination = 'stderr'		# Valid values are combinations of
-					# stderr, csvlog, syslog, and eventlog,
-					# depending on platform.  csvlog
-					# requires logging_collector to be on.
+					# stderr, csvlog, jsonlog, syslog, and
+					# eventlog, depending on platform.
+					# csvlog and jsonlog require
+					# logging_collector to be on.
 
 # This is used when logging to stderr:
-#logging_collector = off		# Enable capturing of stderr and csvlog
-					# into log files. Required to be on for
-					# csvlogs.
+#logging_collector = off		# Enable capturing of stderr, jsonlog,
+					# and csvlog into log files. Required
+					# to be on for csvlogs and jsonlogs.
 					# (change requires restart)
 
 # These are only used if logging_collector is on:
@@ -519,18 +531,23 @@ effective_cache_size = 2GB
 					# are logged regardless of their duration; 1.0 logs all
 					# statements from all transactions, 0.0 never logs
 
+#log_startup_progress_interval = 10s	# Time between progress updates for
+					# long-running startup operations.
+					# 0 disables the feature, > 0 indicates
+					# the interval in milliseconds.
+
 # - What to Log -
 
 #debug_print_parse = off
 #debug_print_rewritten = off
 #debug_print_plan = off
 #debug_pretty_print = on
-#log_autovacuum_min_duration = -1	# log autovacuum activity;
+#log_autovacuum_min_duration = 10min	# log autovacuum activity;
 					# -1 disables, 0 logs all actions and
 					# their durations, > 0 logs only
 					# actions running at least this number
 					# of milliseconds.
-#log_checkpoints = off
+#log_checkpoints = on
 #log_connections = off
 #log_disconnections = off
 #log_duration = off
@@ -590,7 +607,7 @@ log_timezone = 'UTC'
 # STATISTICS
 #------------------------------------------------------------------------------
 
-# - Query and Index Statistics Collector -
+# - Cumulative Query and Index Statistics -
 
 #track_activities = on
 #track_activity_query_size = 1024	# (change requires restart)
@@ -598,7 +615,7 @@ log_timezone = 'UTC'
 #track_io_timing = off
 #track_wal_io_timing = off
 #track_functions = none			# none, pl, all
-#stats_temp_directory = 'pg_stat_tmp'
+#stats_fetch_consistency = cache
 
 
 # - Monitoring -