# This is used when logging to stderr:
logging_collector =on# Enable capturing of stderr and csvlog
# into log files. Required to be on for
# csvlogs.
# (change requires restart)

# These are only used if logging_collector is on:

#配置日志目錄，默認為pg_log即可

log_directory = 'pg_log' # directory where log files are written,

# can be absolute or relative to PGDATA

#pg日志文件名及其擴展名，默認即可

log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,

# can include strftime() escapes

#pg日志文件的權限，默認即可

log_file_mode = 0600 # creation mode for log files,

#開啟日志滾動階段，這里需要設置為on

log_truncate_on_rotation =on# If on, an existing log file with the

#日志保留天數，這里看實際環境，如果是測試建議1d，如果是生產環境建議7d

log_rotation_age = 1d # Automatic rotation of logfiles will

#單個日志大小，默認100MB即可，比較標準的配置

#發送給客戶端的消息級別，建議warning即可，日志等級越低，打印的內容越多，性能上越有損耗
client_min_messages = warning # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# log
# notice
# warning
# error
#寫到數據庫日志文件中的消息的級別，建議warning即可，日志等級越低，打印的內容越多，性能上越有損耗
log_min_messages = warning # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# info
# notice
# warning
# error
# log
# fatal
# panic
#是否記錄導致數據庫出現錯誤的SQL語句，建議warning即可，日志等級越低，打印的內容越多，性能上越有損耗
log_min_error_statement = error # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# info
# notice
# warning
# error
# log
# fatal
# panic (effectively off)

#log_statement_stats為on則會開啟log_parser_stats，log_planner_stats，log_executor_stats這三個選項，生產環境不建議開啟，建議測試環境開啟，用于定位問題。
#log_parser_stats = off
#log_planner_stats = off
#log_executor_stats = off
#log_statement_stats = off 

#執行sql時間為2s以上的sql都會被記錄下來
log_min_duration_statement = 2s