Обсуждение: Add strftime escapes to Log config
All, This page: http://www.postgresql.org/docs/8.3/static/runtime-config-logging.html#RUNTIME-CONFIG-LOGGING-WHERE has the following text: The value is treated as a strftime pattern, so %-escapes can be used to specify time-varying file names. However, nowhere in our docs do we list sample strftime escapes. This means that PG DBAs who are not programmers (and even some who are) end up googling for them all the time. So I would like to add the following text: Useful excape codes which are available on most platforms include: %Y = year, %m = month, %d = day of month, %H = hour, %M = minute, %a = short weekday name, and %b = short month name. -- -- Josh Berkus PostgreSQL Experts Inc. http://www.pgexperts.com
On sön, 2011-03-20 at 13:32 -0700, Josh Berkus wrote: > This page: > > http://www.postgresql.org/docs/8.3/static/runtime-config-logging.html#RUNTIME-CONFIG-LOGGING-WHERE > > has the following text: > > The value is treated as a strftime pattern, so %-escapes can be used to > specify time-varying file names. > > However, nowhere in our docs do we list sample strftime escapes. This > means that PG DBAs who are not programmers (and even some who are) end > up googling for them all the time. So I would like to add the following > text: > > Useful excape codes which are available on most platforms include: %Y = > year, %m = month, %d = day of month, %H = hour, %M = minute, %a = short > weekday name, and %b = short month name. We could also link to <http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html>, for example.
> We could also link to > <http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html>, for > example. That would be helpful. I still think we want a few examples in our docs, though. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com
On Tue, Mar 29, 2011 at 2:53 PM, Josh Berkus <josh@agliodbs.com> wrote: >> We could also link to >> <http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html>, for >> example. > > That would be helpful. I still think we want a few examples in our > docs, though. Patch? -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
Peter Eisentraut wrote: > On s?n, 2011-03-20 at 13:32 -0700, Josh Berkus wrote: > > This page: > > > > http://www.postgresql.org/docs/8.3/static/runtime-config-logging.html#RUNTIME-CONFIG-LOGGING-WHERE > > > > has the following text: > > > > The value is treated as a strftime pattern, so %-escapes can be used to > > specify time-varying file names. > > > > However, nowhere in our docs do we list sample strftime escapes. This > > means that PG DBAs who are not programmers (and even some who are) end > > up googling for them all the time. So I would like to add the following > > text: > > > > Useful excape codes which are available on most platforms include: %Y = > > year, %m = month, %d = day of month, %H = hour, %M = minute, %a = short > > weekday name, and %b = short month name. > > We could also link to > <http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html>, for > example. Agreed. I have applied the attached patch to 9.1 and head. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. + diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml new file mode 100644 index 4b35169..615b2b0 *** a/doc/src/sgml/config.sgml --- b/doc/src/sgml/config.sgml *************** local0.* /var/log/postgresql *** 3086,3091 **** --- 3086,3095 ---- any time-zone-dependent <literal>%</literal>-escapes, the computation is done in the zone specified by <xref linkend="guc-log-timezone">.) + The supported <literal>%</literal>-escapes are similar to those + listed in the Open Group's <ulink + url="http://pubs.opengroup.org/onlinepubs/009695399/functions/strftime.html">strftime + </ulink> specification. Note that the system's <systemitem>strftime</systemitem> is not used directly, so platform-specific (nonstandard) extensions do not work. </para>