PostgreSQL9.3 パラメータ反映のタイミング
DBの再起動が必用

反映のタイミング
ビルドもしくはDB初期化時に設定可能

DBの再起動時に反映可能

DBを再起動せずに反映可能 リロード（pg_ctl reload）で反映可能

DBを再起動せずに反映可能 リロード（pg_ctl reload）で反映可能

セッション開設時に反映可能

superuserがDBセッション内で変更可能

ユーザがDBセッション内で変更可能

パラメータ
block_size
integer_datetimes
lc_collate
lc_ctype
max_function_args
max_identifier_length
max_index_keys
segment_size
server_encoding
server_version
server_version_num
wal_block_size
wal_segment_size
allow_system_table_mods
archive_mode
autovacuum_freeze_max_age
autovacuum_max_workers
bonjour
bonjour_nameconfig_file
data_directory
external_pid_file
hba_file
hot_standby
ident_file
listen_addresses
logging_collector
max_connections
max_files_per_process
max_locks_per_transaction
max_pred_locks_per_transaction
max_prepared_transactions
max_wal_senders
pg_stat_statements.max
portshared_buffers
shared_preload_libraries
silent_mode
ssl
ssl_ciphers
superuser_reserved_connections
track_activity_query_size
unix_socket_directory
unix_socket_group
unix_socket_permissions
wal_buffers
wal_level
archive_commandarchive_timeout

authentication_timeout
autovacuum
autovacuum_analyze_scale_factor
autovacuum_analyze_thresholdautovacuum_naptime
autovacuum_vacuum_cost_delay
autovacuum_vacuum_cost_limit
autovacuum_vacuum_scale_factor
autovacuum_vacuum_threshold
bgwriter_delay
bgwriter_lru_maxpages
bgwriter_lru_multipliercheckpoint_completion_target
checkpoint_segments
checkpoint_timeout
checkpoint_warning
custom_variable_classes
db_user_namespace
deadlock_timeout
fsync
full_page_writes
hot_standby_feedback
krb_caseins_users
krb_server_keyfile
krb_srvname
log_autovacuum_min_duration
log_checkpoints
log_destination
log_directory
log_file_mode
log_filename
log_hostname
log_line_prefix
log_rotation_age
log_rotation_size
log_timezone
log_truncate_on_rotation
max_standby_archive_delay
max_standby_streaming_delay
pg_stat_statements.save
pre_auth_delay
replication_timeout
restart_after_crashstats_temp_directorysynchronous_standby_names
syslog_facility
syslog_ident
trace_recovery_messages
vacuum_defer_cleanup_age
wal_keep_segments
wal_receiver_status_interval
wal_sender_delaywal_sync_method
wal_writer_delay
ignore_system_indexes
local_preload_libraries
log_connections
log_disconnections
post_auth_delay
dynamic_library_path
lc_messages
lo_compat_privileges
log_duration
log_error_verbosity
log_executor_stats
log_lock_waits
log_min_duration_statement
log_min_error_statement
log_min_messages
log_parser_stats
log_planner_stats
log_statement
log_statement_stats
log_temp_files
max_stack_depth
pg_stat_statements.track
pg_stat_statements.track_utility
session_replication_role
track_activities
track_counts
track_functions
update_process_title
zero_damaged_pages
DateStyle
IntervalStyle
TimeZoneapplication_namearray_nulls
backslash_quotebytea_output
check_function_bodies
client_encoding
client_min_messages
commit_delay
commit_siblings
constraint_exclusion
cpu_index_tuple_cost
cpu_operator_cost
cpu_tuple_cost
cursor_tuple_fraction
debug_assertions
debug_pretty_print
debug_print_parsedebug_print_plan

debug_print_rewritten
default_statistics_target
default_tablespace
default_text_search_config
default_transaction_deferrable
default_transaction_isolation
default_transaction_read_only
default_with_oids
effective_cache_size
effective_io_concurrency
enable_bitmapscan
enable_hashagg
enable_hashjoin
enable_indexscan
enable_material
enable_mergejoin
enable_nestloop
enable_seqscan
enable_sortenable_tidscan
escape_string_warning
exit_on_error
extra_float_digits
from_collapse_limit
geqo
geqo_effort
geqo_generations
geqo_pool_size
geqo_seed
geqo_selection_bias
geqo_threshold
gin_fuzzy_search_limit
join_collapse_limit
lc_monetarylc_numericlc_timemaintenance_work_mem
password_encryption
quote_all_identifiers
random_page_cost
search_path
seq_page_cost
sql_inheritancessl_renegotiation_limitstandard_conforming_strings
statement_timeout
synchronize_seqscanssynchronous_commit
tcp_keepalives_count
tcp_keepalives_idle
tcp_keepalives_interval
temp_buffers

temp_tablespaces
timezone_abbreviations
trace_notify
trace_sort
transaction_deferrable
transaction_isolationtransaction_read_only
transform_null_equals
vacuum_cost_delay
vacuum_cost_limit
vacuum_cost_page_dirty
vacuum_cost_page_hit
vacuum_cost_page_missvacuum_freeze_min_age
vacuum_freeze_table_age
work_mem
xmlbinary
xmloption