SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 2)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function toDecimal128 (alias x) (children 1)
            ExpressionList (children 2)
             Literal \'12345.00\'
             Literal UInt64_4
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function toInt8 (alias x) (children 1)
            ExpressionList (children 1)
             Literal UInt64_0
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier x
     Literal UInt64_0
