SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectIntersectExceptQuery (children 2)
   SelectWithUnionQuery (children 1)
    ExpressionList (children 1)
     SelectQuery (children 5)
      ExpressionList (children 2)
       Identifier a
       Function uniqExact (children 1)
        ExpressionList (children 1)
         Identifier b
      TablesInSelectQuery (children 1)
       TablesInSelectQueryElement (children 1)
        TableExpression (children 1)
         TableIdentifier t_uniq_exact
      ExpressionList (children 1)
       Identifier a
      ExpressionList (children 1)
       OrderByElement (children 1)
        Identifier a
      Set
   SelectQuery (children 5)
    ExpressionList (children 2)
     Identifier a
     Function uniqExact (children 1)
      ExpressionList (children 1)
       Identifier b
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier t_uniq_exact
    ExpressionList (children 1)
     Identifier a
    ExpressionList (children 1)
     OrderByElement (children 1)
      Identifier a
    Set
