SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier requests (alias t)
   Function greater (children 1)
    ExpressionList (children 2)
     Identifier t.event_tm
     Function toDate (children 1)
      ExpressionList (children 1)
       Literal \'2000-01-01\'
