log_filename
A configuration parameter determining the log file name
log_filename is a configuration parameter determining the filename of log files stored on the local file system.
log_filename was added in PostgreSQL 8.0.
Default
The default value for log_filename is: postgresql-%Y-%m-%d_%H%M%S.log
Formatting
The filename format is treated as a strftime pattern, with the %-escapes being similar to those listed in the Open Group strftime specification. Note that the local system's strftime is not used directly, and non-standard extensions to the format are not supported. For further details on PostgreSQL's strftime implementation, see: src/timezone/strftime.c.
Change history
- PostgreSQL 8.4
- epoch string no longer appended if no format specifiers present (commit 7380b638)
- PostgreSQL 8.0
References
- PostgreSQL documentation: log_filename