MySQL Forums
Forum List  »  Performance

Advanced Search
New Topic

Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
Posted by: Rick James
Date: October 09, 2015 10:34PM

I have not heard of a big site doing what you propose. However, it is feasible. In PHP (say) you could do the analysis and construct the query with (or without) the "hint".

I don't like it because it may bite you tomorrow. However, I don't have a better answer for today.

Navigate: Previous Message• Next Message
Options: Reply• Quote


Subject
Views
Written By
Posted
Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
2813
Ronald Brown
October 03, 2015 12:47AM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1513
Rick James
October 03, 2015 08:01PM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1506
Ronald Brown
October 03, 2015 08:34PM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1341
Rick James
October 05, 2015 10:38AM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1414
Rick James
October 05, 2015 10:41AM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1289
Ronald Brown
October 05, 2015 10:50AM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1311
Ronald Brown
October 04, 2015 08:28PM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1254
Ronald Brown
October 05, 2015 12:26PM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1434
Rick James
October 06, 2015 11:00AM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
3098
Ronald Brown
October 06, 2015 11:50PM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1227
Rick James
October 07, 2015 08:12PM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1250
Ronald Brown
October 08, 2015 11:17PM
Re: Why is ORDER BY ASC is slow but ORDER DESC is fast ? and how can i fix it ?
1428
Rick James
October 09, 2015 10:34PM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.