use "when" as a column name, so let's change our usage while it's still easy to do so. git-svn-id: svn://10.0.0.236/trunk@47590 18797224-902f-48f8-a5cc-f745e15eee43
use "when" as a column name, so let's change our usage while it's still easy to do so. git-svn-id: svn://10.0.0.236/trunk@47590 18797224-902f-48f8-a5cc-f745e15eee43