SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Function toInt8 (alias id) (children 1)
            ExpressionList (children 1)
             Literal UInt64_1
           Function toDate (alias date) (children 1)
            ExpressionList (children 1)
             Literal \'2000-01-01\'
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_1
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias b) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier test_00597
     TableJoin (children 1)
      ExpressionList (children 2)
       Identifier date
       Identifier id
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier b.date
     Function toDate (children 1)
      ExpressionList (children 1)
       Literal \'2000-01-01\'
   Set
