Add log_line_prefix option 'n' for Unix epoch.

Prints time as Unix epoch with milliseconds.

Tomas Vondra, reviewed by Fabien Coelho.

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index e3dc23bf1303ccf6b5499e433b136aca955bb720..3ced3997309f87674a26c4b387628bf9c3647bf6 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -4629,6 +4629,11 @@ local0.*    /var/log/postgresql
              Time stamp with milliseconds
              no
             
+            
+             %n
+             Time stamp with milliseconds (as a Unix epoch)
+             no
+            
             
              %i
              Command tag: type of session's current command

diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 088c714821bde8e2e655d9b12d1e14c99fbc5aa9..9114c55b66b4392f589bd31284748e8955eef4e7 100644 (file)
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -2438,6 +2438,20 @@ log_line_prefix(StringInfo buf, ErrorData *edata)
                        appendStringInfoString(buf, strfbuf);
                }
                break;
+           case 'n':
+               {
+                   struct  timeval tv;
+                   char    strfbuf[128];
+
+                   gettimeofday(&tv, NULL);
+                   sprintf(strfbuf, "%ld.%03d", tv.tv_sec, (int)(tv.tv_usec / 1000));
+
+                   if (padding != 0)
+                       appendStringInfo(buf, "%*s", padding, strfbuf);
+                   else
+                       appendStringInfoString(buf, strfbuf);
+               }
+               break;
            case 's':
                if (formatted_start_time[0] == '\0')
                    setup_formatted_start_time();

diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 695a88fe7d1bbf21e7485320272d1e7d74810163..c33e5856197bae3b2cbbb32703df0d539687b59a 100644 (file)
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -425,6 +425,7 @@
                    #   %p = process ID
                    #   %t = timestamp without milliseconds
                    #   %m = timestamp with milliseconds
+                   #   %n = timestamp with milliseconds (as a Unix epoch)
                    #   %i = command tag
                    #   %e = SQL state
                    #   %c = session ID