Add starting and ending archive tags to experiment run, to replace the

single end of run archive tag.

sql/database-create.sql

@@ -486,6 +486,8 @@ CREATE TABLE experiment_runs (
   idx int(10) unsigned NOT NULL auto_increment,
   runid varchar(32) NOT NULL default '',
   description tinytext,
+  starting_archive_tag varchar(64) default NULL,
+  ending_archive_tag varchar(64) default NULL,
   archive_tag varchar(64) default NULL,
   start_time datetime default NULL,
   stop_time datetime default NULL,

sql/database-migrate.txt

@@ -3685,3 +3685,14 @@ last_net_act,last_cpu_act,last_ext_act);
       caps for plab nodes.
 
       alter table widearea_nodeinfo add bwlimit varchar(32) default NULL;
+
+4.89: Add starting and ending archive tags to experiment run, to
+      replace the single end of run archive tag.
+
+      **** Skip this stuff below if you just did 4.41 above.
+
+      alter table experiment_runs add \
+        starting_archive_tag varchar(64) default NULL after description;
+      alter table experiment_runs add \
+        ending_archive_tag varchar(64) default NULL after starting_archive_tag;
+

sql/templates.sql

@@ -362,6 +362,9 @@ CREATE TABLE experiment_runs (
   runid varchar(32) NOT NULL default '',
   -- A short description; not sure I really want this. 
   description tinytext,
+  -- The archive tags for the start and end of the run.
+  starting_archive_tag varchar(64) default NULL,
+  ending_archive_tag varchar(64) default NULL,
   -- The tag for the commit at the end of the run.
   archive_tag varchar(64) default NULL,
   -- Timestamps