# -----------------------------
# PostgreSQL configuration file
# -----------------------------
#
# 
#------------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
#------------------------------------------------------------------------------

# - Memory -

shared_buffers = 2048MB															# min 128kB
temp_buffers = 8MB																# min 800kB
#max_prepared_transactions = 0													# zero disables the feature
work_mem = 256MB																# min 64kB
maintenance_work_mem = 128MB													# min 1MB
#max_stack_depth = 2MB															# min 100kB


#max_files_per_process = 1000													# min 25
#shared_preload_libraries = ''


#vacuum_cost_delay = 0ms														# 0-100 milliseconds
#vacuum_cost_page_hit = 1														# 0-10000 credits
#vacuum_cost_page_miss = 10														# 0-10000 credits
#vacuum_cost_page_dirty = 20													# 0-10000 credits
#vacuum_cost_limit = 200														# 1-10000 credits

#bgwriter_delay = 200ms															# 10-10000ms between rounds
#bgwriter_lru_maxpages = 100													# 0-1000 max buffers written/round
#bgwriter_lru_multiplier = 2.0													# 0-10.0 multipler on buffers scanned/round

#effective_io_concurrency = 1													# 1-1000. 0 disables prefetching


#------------------------------------------------------------------------------
# WRITE AHEAD LOG
#------------------------------------------------------------------------------


#wal_level = minimal															# minimal, archive, or hot_standby)
#fsync = on																		# turns forced synchronization on or off
#synchronous_commit = on														# synchronization level; on, off, or local
#wal_sync_method = fsync														# the default is the first option
#full_page_writes = on															# recover from partial page writes
wal_buffers = 32MB																# min 32kB, -1 sets based on shared_buffers
wal_writer_delay = 500ms														# 1-10000 milliseconds
#commit_delay = 0																# range 0-100000, in microseconds
#commit_siblings = 5															# range 1-1000

checkpoint_segments = 64														# in logfile segments, min 1, 16MB each
#checkpoint_timeout = 5min														# range 30s-1h
checkpoint_completion_target = 0.9												# checkpoint target duration, 0.0 - 1.0
#checkpoint_warning = 30s														# 0 disables

#archive_mode = off																# allows archiving to be done
#archive_command = ''															# command to use to archive a logfile segment
#archive_timeout = 0															# force a logfile segment switch after this

#------------------------------------------------------------------------------
# REPLICATION
#------------------------------------------------------------------------------

# - Master Server -


#max_wal_senders = 0															# max number of walsender processes
#wal_sender_delay = 1s															# 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
#replication_timeout = 60s														# in milliseconds; 0 disables
#synchronous_standby_names = ''													# standby servers that provide sync rep

# - Standby Servers -



#hot_standby = off																# "on" allows queries during recovery
#max_standby_archive_delay = 30s												# max delay before canceling queries
#max_standby_streaming_delay = 30s												# max delay before canceling queries
#wal_receiver_status_interval = 10s												# send replies at least this often
#hot_standby_feedback = off														# send info from standby to prevent



#------------------------------------------------------------------------------
# QUERY TUNING
#------------------------------------------------------------------------------

# - Planner Method Configuration -

#enable_bitmapscan = on
#enable_hashagg = on
#enable_hashjoin = on
#enable_indexscan = on
#enable_material = on
#enable_mergejoin = on
#enable_nestloop = on
#enable_seqscan = on
#enable_sort = on
#enable_tidscan = on

# - Planner Cost Constants -

#seq_page_cost = 1.0															# measured on an arbitrary scale
#random_page_cost = 4.0															# same scale as above
#cpu_tuple_cost = 0.01															# same scale as above
cpu_index_tuple_cost = 0.0005													# same scale as above
#cpu_operator_cost = 0.0025														# same scale as above
effective_cache_size = 2GB

# - Genetic Query Optimizer -

#geqo = on
#geqo_threshold = 12
#geqo_effort = 5																# range 1-10
#geqo_pool_size = 0																# selects default based on effort
#geqo_generations = 0															# selects default based on effort
#geqo_selection_bias = 2.0														# range 1.5-2.0
#geqo_seed = 0.0																# range 0.0-1.0

# - Other Planner Options -

default_statistics_target = 1000												# range 1-10000
#constraint_exclusion = partition												# on, off, or partition
#cursor_tuple_fraction = 0.1													# range 0.0-1.0
#from_collapse_limit = 8
#join_collapse_limit = 8														# 1 disables collapsing of explicit


#------------------------------------------------------------------------------
# ERROR REPORTING AND LOGGING
#------------------------------------------------------------------------------

# - Where to Log -

log_destination = 'stderr'	


# This is used when logging to stderr:
logging_collector = on	

# These are only used if logging_collector is on:
#log_directory = 'pg_log'														# directory where log files are written,
#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'								# log file name pattern,
#log_file_mode = 0600															# creation mode for log files,
#log_truncate_on_rotation = off
#log_rotation_age = 1d	
#log_rotation_size = 10MB		
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'
#silent_mode = off


# - When to Log -

#client_min_messages = notice
#log_min_messages = warning
#log_min_error_statement = error
#log_min_duration_statement = -1


# - What to Log -

#debug_print_parse = off
#debug_print_rewritten = off
#debug_print_plan = off
#debug_pretty_print = on
#log_checkpoints = off
#log_connections = off
#log_disconnections = off
#log_duration = off
#log_error_verbosity = default													# terse, default, or verbose messages
#log_hostname = off
log_line_prefix = '%t '	
#log_lock_waits = off															# log lock waits >= deadlock_timeout
#log_statement = 'none'															# none, ddl, mod, all
#log_temp_files = -1	
#log_timezone = '(defaults to server environment setting)'


#------------------------------------------------------------------------------
# RUNTIME STATISTICS
#------------------------------------------------------------------------------

# - Query/Index Statistics Collector -

#track_activities = on
#track_counts = on
#track_functions = none															# none, pl, all
#track_activity_query_size = 1024												
#update_process_title = on
#stats_temp_directory = 'pg_stat_tmp'


# - Statistics Monitoring -

#log_parser_stats = off
#log_planner_stats = off
#log_executor_stats = off
#log_statement_stats = off


#------------------------------------------------------------------------------
# AUTOVACUUM PARAMETERS
#------------------------------------------------------------------------------

autovacuum = on																	# Enable autovacuum subprocess?  'on'
#log_autovacuum_min_duration = -1
#autovacuum_max_workers = 3	
autovacuum_naptime = 60min														# time between autovacuum runs
#autovacuum_vacuum_threshold = 50
autovacuum_analyze_threshold = 1000	
#autovacuum_vacuum_scale_factor = 0.2											# fraction of table size before vacuum
#autovacuum_analyze_scale_factor = 0.1											# fraction of table size before analyze
#autovacuum_freeze_max_age = 200000000											# maximum XID age before forced vacuum
#autovacuum_vacuum_cost_delay = 20ms											# default vacuum cost delay for
#autovacuum_vacuum_cost_limit = -1												# default vacuum cost limit for



#------------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#------------------------------------------------------------------------------

# - Statement Behavior -

#search_path = '"$user",public'													# schema names
#default_tablespace = ''														# a tablespace name, '' uses the default
#temp_tablespaces = ''															# a list of tablespace names, '' uses
#check_function_bodies = on
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = off
#default_transaction_deferrable = off
#session_replication_role = 'origin'
#statement_timeout = 0															# in milliseconds, 0 is disabled
#vacuum_freeze_min_age = 50000000
#vacuum_freeze_table_age = 150000000
#bytea_output = 'hex'															# hex, escape
#xmlbinary = 'base64'
#xmloption = 'content'

# - Locale and Formatting -

datestyle = 'iso, mdy'
#intervalstyle = 'postgres'
#timezone = '(defaults to server environment setting)'
#timezone_abbreviations = 'Default'  
#extra_float_digits = 0			# min -15, max 3
#client_encoding = sql_ascii
# These settings are initialized by initdb, but they can be changed.
lc_messages = 'English_United States.1252'										# locale for system error message
lc_monetary = 'English_United States.1252'										# locale for monetary formatting
lc_numeric = 'English_United States.1252'										# locale for number formatting
lc_time = 'English_United States.1252'											# locale for time formatting

# default configuration for text search
default_text_search_config = 'pg_catalog.english'
# - Other Defaults -
#dynamic_library_path = '$libdir'
#local_preload_libraries = ''


#------------------------------------------------------------------------------
# LOCK MANAGEMENT
#------------------------------------------------------------------------------

#deadlock_timeout = 1s
#max_locks_per_transaction = 64													# min 10
# lock table slots.
#max_pred_locks_per_transaction = 64	# min 10

#------------------------------------------------------------------------------
# VERSION/PLATFORM COMPATIBILITY
#------------------------------------------------------------------------------

# - Previous PostgreSQL Versions -

#array_nulls = on
#backslash_quote = safe_encoding												# on, off, or safe_encoding
#default_with_oids = off
#escape_string_warning = on
#lo_compat_privileges = off
#quote_all_identifiers = off
#sql_inheritance = on
#standard_conforming_strings = on
#synchronize_seqscans = on
# - Other Platforms and Clients -
#transform_null_equals = off


#------------------------------------------------------------------------------
# ERROR HANDLING
#------------------------------------------------------------------------------

#exit_on_error = off															# terminate session on any error?
#restart_after_crash = on														# reinitialize after backend crash?


#------------------------------------------------------------------------------
# CUSTOMIZED OPTIONS
#------------------------------------------------------------------------------

#custom_variable_classes = ''													# list of custom variable class names