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 toDecimal64 (alias x) (children 1)
            ExpressionList (children 2)
             Literal \'12345\'
             Literal UInt64_0
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function toInt64 (alias x) (children 1)
            ExpressionList (children 1)
             Literal UInt64_0
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier x
     Literal UInt64_0
