Explain EXPLAIN ESTIMATE (children 1)
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 4)
    ExpressionList (children 1)
     Function count (children 1)
      ExpressionList
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier url_na_log
    Function and (children 1)
     ExpressionList (children 2)
      Function greaterOrEquals (children 1)
       ExpressionList (children 2)
        Identifier DateVisit
        Function toFixedString (children 1)
         ExpressionList (children 2)
          Literal \'2022-08-10\'
          Literal UInt64_10
      Function lessOrEquals (children 1)
       ExpressionList (children 2)
        Identifier DateVisit
        Literal \'2022-08-20\'
    Set
