SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Identifier event
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.events
   Function like (children 1)
    ExpressionList (children 2)
     Identifier event
     Literal \'%MMap%\'
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier event