SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier decimal
   Function less (children 1)
    ExpressionList (children 2)
     Identifier d1
     Function toDecimal32 (children 1)
      ExpressionList (children 2)
       Literal \'4.2\'
       Literal UInt64_8