This patch against 8.0.0beta1 source adds log_line_prefix options for

millisecond timestamps (%m) and remote host (%h). The milliseconds are
useful for QPS measurements.

Ed L.

diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
index e1ffd22c5a8494b4ba34450114e69aaf4cd71a7a..216e8f7e9a16194fac97f1d189c887937d2134ad 100644 (file)
--- a/doc/src/sgml/runtime.sgml
+++ b/doc/src/sgml/runtime.sgml
@@ -1,5 +1,5 @@
 
 
 
@@ -2829,6 +2829,11 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"'  # Windows
              Remote host name or IP address, and remote port
              yes
             
+            
+             %h
+             Remote Hostname or IP address
+             yes
+            
             
              %p
              Process ID
@@ -2839,6 +2844,11 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"'  # Windows
              Time stamp
              no
             
+            
+             %m
+             Timestamp with milliseconds
+             no
+            
             
              %i
              Command tag: This is the command that generated the log line.

diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 5dd564ef28167147dbb7fd454b38265f4bd3769a..122a0a92a55df74d5ea12d4c7a60ce24e4496991 100644 (file)
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -42,7 +42,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/utils/error/elog.c,v 1.158 2005/03/12 01:54:44 tgl Exp $
+ *   $PostgreSQL: pgsql/src/backend/utils/error/elog.c,v 1.159 2005/06/09 22:29:52 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1375,6 +1375,33 @@ log_line_prefix(StringInfo buf)
            case 'l':
                appendStringInfo(buf, "%ld", log_line_number);
                break;
+           case 'm':
+               {
+                   time_t stamp_time;
+                   char strfbuf[128], msbuf[5];
+                   struct timeval tv;
+
+                   gettimeofday(&tv, NULL);
+                   stamp_time = tv.tv_sec;
+
+                   strftime(strfbuf, sizeof(strfbuf),
+                   /* leave room for milliseconds... */
+                   /* Win32 timezone names are too long so don't print them. */
+#ifndef WIN32
+                       "%Y-%m-%d %H:%M:%S     %Z",
+#else
+                       "%Y-%m-%d %H:%M:%S     ",
+#endif
+                       localtime(&stamp_time));
+
+                   /* 'paste' milliseconds into place... */
+                   sprintf(msbuf, ".%03d", 
+                       (int)(tv.tv_usec/1000));
+                   strncpy(strfbuf+19, msbuf, 4);
+
+                   appendStringInfoString(buf, strfbuf);
+               }
+               break;
            case 't':
                {
                    /*
@@ -1426,6 +1453,10 @@ log_line_prefix(StringInfo buf)
                                         MyProcPort->remote_port);
                }
                break;
+           case 'h':
+               if (MyProcPort)
+                   appendStringInfo(buf, "%s", MyProcPort->remote_host);
+               break;
            case 'q':
                /* in postmaster and friends, stop if %q is seen */
                /* in a backend, just ignore */

diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index d54ae5fcfda19ffc4616e912d53ef99ad982448e..e68f82bb3c8cae6bdd7199b4bdbc726a4ea10b7f 100644 (file)
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -241,8 +241,9 @@
 #log_duration = false
 #log_line_prefix = ''      # e.g. '<%u%%%d> ' 
                # %u=user name %d=database name
-               # %r=remote host and port
+               # %r=remote host and port %h=remote host
                # %p=PID %t=timestamp %i=command tag
+               # %m=timestamp with milliseconds
                # %c=session id %l=session line number
                # %s=session start timestamp %x=transaction id
                # %q=stop here in non-session processes