SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function count (children 1)
     ExpressionList
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier n
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function merge (children 1)
       ExpressionList (children 2)
        Function currentDatabase (children 1)
         ExpressionList
        Literal \'src_table\'
   Function and (children 1)
    ExpressionList (children 2)
     Function in (children 1)
      ExpressionList (children 2)
       Identifier _table
       Identifier set
     Function equals (children 1)
      ExpressionList (children 2)
       Function modulo (children 1)
        ExpressionList (children 2)
         Identifier n
         Literal UInt64_2
       Literal UInt64_0
