Index: frmStatus.cpp
===================================================================
RCS file: /projects/pgadmin3/src/ui/frmStatus.cpp,v
retrieving revision 1.38
retrieving revision 1.39
diff -Lsrc/ui/frmStatus.cpp -Lsrc/ui/frmStatus.cpp -u -w -r1.38 -r1.39
--- src/ui/frmStatus.cpp
+++ src/ui/frmStatus.cpp
@@ -137,6 +137,9 @@
             logList->AddColumn(_("Level"), 35);
 
         logList->AddColumn(_("Log entry"), 800);
+
+        if (!connection->HasFeature(FEATURE_ROTATELOG))
+            btnRotateLog->Disable();
     }
     else
         nbStatus->DeletePage(2);
@@ -167,6 +170,7 @@
     if (connection)
         delete connection;
 
+    if (nbStatus->GetPageCount() > 2)
     emptyLogfileCombo();
 }
 
Index: pgConn.cpp
===================================================================
RCS file: /projects/pgadmin3/src/db/pgConn.cpp,v
retrieving revision 1.52
retrieving revision 1.53
diff -Lsrc/db/pgConn.cpp -Lsrc/db/pgConn.cpp -u -w -r1.52 -r1.53
--- src/db/pgConn.cpp
+++ src/db/pgConn.cpp
@@ -450,6 +450,12 @@
                     wxT(  " AND proargtypes[1] = 20")
                     wxT(  " AND proargtypes[2] = 20"))
                     .IsEmpty();
+        features[FEATURE_ROTATELOG] =
+            !ExecuteScalar(
+                    wxT("SELECT proname FROM pg_proc\n")
+                    wxT(" WHERE proname = 'pg_rotate_log'")
+                    wxT(  " AND pronargs = 0"))
+                    .IsEmpty();
     }
 
     if (featureNo < 1 ||featureNo >= FEATURE_LAST)
Index: pgfeatures.h
===================================================================
RCS file: /projects/pgadmin3/src/include/pgfeatures.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -Lsrc/include/pgfeatures.h -Lsrc/include/pgfeatures.h -u -w -r1.1 -r1.2
--- src/include/pgfeatures.h
+++ src/include/pgfeatures.h
@@ -14,5 +14,6 @@
     FEATURE_INITIALIZED=0,
     FEATURE_SIZE,
     FEATURE_FILEREAD,
+    FEATURE_ROTATELOG,
     FEATURE_LAST
 };