Now diagnostic info have a new data, 'db_scheme_first_version' and show the first pandora db scheme version.

pandora_console/extras/pandora_diag.php

@@ -123,7 +123,10 @@ switch ($config["dbtype"]) {
 	case "mysql":
 		render_info_data ("SELECT `value`
 			FROM tconfig
-			WHERE `token` = 'db_scheme_version'", "DB Schema Version");
+			WHERE `token` = 'db_scheme_first_version'", "DB Schema Version (first installed)");
+		render_info_data ("SELECT `value`
+			FROM tconfig
+			WHERE `token` = 'db_scheme_version'", "DB Schema Version (actual)");
 		render_info_data ("SELECT `value`
 			FROM tconfig
 			WHERE `token` = 'db_scheme_build'", "DB Schema Build");

pandora_console/pandoradb_data.sql

@@ -37,6 +37,7 @@ INSERT INTO `tconfig` (`token`, `value`) VALUES
 ('days_compact','0'),
 ('graph_res','5'),
 ('step_compact','1'),
+('db_scheme_first_version', '5.1dev'),
 ('db_scheme_version','5.1SP3'),
 ('db_scheme_build','PD150722'),
 ('show_unknown','0'),