SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 2)
    Function shardNum (children 1)
     ExpressionList
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier dt
   Function in (children 1)
    ExpressionList (children 2)
     Function tuple (children 1)
      ExpressionList (children 2)
       Identifier tag_id
       Identifier tag_name
     Literal Tuple_(Tuple_(UInt64_1, \'foo1\'), Tuple_(UInt64_1, \'foo2\'))
   ExpressionList (children 1)
    Literal UInt64_1
   ExpressionList (children 1)
    OrderByElement (children 1)
     Literal UInt64_1
