SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function finalizeAggregation (children 1)
     ExpressionList (children 1)
      Identifier d.AggregateFunction(sum, UInt64)
    Function sumMerge (children 1)
     ExpressionList (children 1)
      Identifier d.AggregateFunction(sum, UInt64)
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t
   ExpressionList (children 1)
    Identifier d.AggregateFunction(sum, UInt64)
