SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Identifier c1
    Function uniqExact (children 1)
     ExpressionList (children 1)
      Identifier c2
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test
   ExpressionList (children 2)
    ExpressionList (children 1)
     Identifier c1
    ExpressionList
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier c1
