SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function tuple (children 1)
     ExpressionList (children 3)
      Function uniqTheta (children 1)
       ExpressionList (children 1)
        Identifier a
      Function uniqTheta (children 1)
       ExpressionList (children 1)
        Identifier b
      Function uniqTheta (children 1)
       ExpressionList (children 1)
        Identifier c
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier decimal
          ExpressionList (children 1)
           OrderByElement (children 1)
            Identifier a