Re: Graphical explain plan sometimes shows "using" for the index name

Поиск
Список
Период
Сортировка
От Andy Shellam (Mailing Lists)
Тема Re: Graphical explain plan sometimes shows "using" for the index name
Дата
Msg-id 45C778DB.7040207@mailnetwork.co.uk
обсуждение исходный текст
Ответ на Graphical explain plan sometimes shows "using" for the index name  ("O'Shea, Brendan" <boshea@akamai.com>)
Ответы Re: Graphical explain plan sometimes shows "using" for the index name  ("O'Shea, Brendan" <boshea@akamai.com>)
Список pgadmin-support
Is this still present in the latest version of PgAdmin?  v1.6.2 is the 
current stable version.

Regards,

Andy.


O'Shea, Brendan wrote:
> This is a bug in the graphical explain plan in the pgAdmin III Query
> tool.  In the graphical explain plan if your query is ordering with the
> help of an index and the order is "Descending" then the graphical
> explain plan just says "using" as the index name.  If the sort order is
> ascending then the correct index name is displayed.  Here are the
> relevant lines from the textual output from explain:
>
>
> DESC
>         ->  Index Scan Backward using idx_name on table_name
> ASC
>         ->  Index Scan using idx_name on table_name
>
> This may be because the code for getting the index name is grabbing the
> 4th word and does not check to see if the word "Backward" was added to
> the line, in which case the 5th word should be used.
>
> My Environment:
> pgAdmin III 1.4.3
> Default config, downloaded precomplied binary for windows
> Windows XP
> Postgresql 8.1.4
>
>
> To reproduce the problem is simple, just be sure to order by an indexed
> column and then click the Explain Query button:
>
> select * from table_name order by indexed_col  asc limit 1
> select * from table_name order by indexed_col desc limit 1
>
>
> I did a mailing list search but didn't see anyone else reporting this.
> If it's a newly found bug then I'd greatly appreciate it if someone
> could fix this.  I use the graphical query explain tool a lot, I find it
> to be very useful when designing new queries.
>
> Thanks,
> Brendan
>
> ---------------------------(end of broadcast)---------------------------
> TIP 1: if posting/reading through Usenet, please send an appropriate
>        subscribe-nomail command to majordomo@postgresql.org so that your
>        message can get through to the mailing list cleanly
>
> !DSPAM:37,45c775e918511302212047!
>
>
>   


В списке pgadmin-support по дате отправления:

Предыдущее
От: "Dave Page"
Дата:
Сообщение: Re: My SQL pane has gone
Следующее
От: "O'Shea, Brendan"
Дата:
Сообщение: Re: Graphical explain plan sometimes shows "using" for the index name