Comments on: SQL: ranking without self join, revisited http://code.openark.org/blog/mysql/sql-ranking-without-self-join-revisited Blog by Shlomi Noach Thu, 11 Mar 2010 12:08:37 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: shlomi http://code.openark.org/blog/mysql/sql-ranking-without-self-join-revisited/comment-page-1#comment-4336 shlomi Sun, 27 Sep 2009 07:11:10 +0000 http://code.openark.org/blog/?p=1330#comment-4336 Yikes!! Browsing through High Performance MySQL (2nd Ed.), I suddenly notice this has all been discussed at length, at the end of chapter 4. Seems like I've mostly repeated things that have been said there; I apparently offer little new. Shlomi Yikes!!

Browsing through High Performance MySQL (2nd Ed.), I suddenly notice this has all been discussed at length, at the end of chapter 4.
Seems like I’ve mostly repeated things that have been said there; I apparently offer little new.

Shlomi

]]> By: shlomi http://code.openark.org/blog/mysql/sql-ranking-without-self-join-revisited/comment-page-1#comment-4283 shlomi Fri, 25 Sep 2009 13:22:41 +0000 http://code.openark.org/blog/?p=1330#comment-4283 Hi Roland, Thank you. I will make an effort to get more reliable information. I think we should avoid the situation where we say "hmmm.. we're not sure about this so let's not use it", but push towards a reliable answer. Shlomi Hi Roland,

Thank you. I will make an effort to get more reliable information.
I think we should avoid the situation where we say “hmmm.. we’re not sure about this so let’s not use it”, but push towards a reliable answer.

Shlomi

]]> By: Roland Bouman http://code.openark.org/blog/mysql/sql-ranking-without-self-join-revisited/comment-page-1#comment-4280 Roland Bouman Fri, 25 Sep 2009 11:21:54 +0000 http://code.openark.org/blog/?p=1330#comment-4280 BTW: I just wanted to say I agree with your analysis regarding the limitions of using GROUP_CONCAT (as I did in my example) BTW: I just wanted to say I agree with your analysis regarding the limitions of using GROUP_CONCAT (as I did in my example)

]]> By: Roland Bouman http://code.openark.org/blog/mysql/sql-ranking-without-self-join-revisited/comment-page-1#comment-4279 Roland Bouman Fri, 25 Sep 2009 11:20:43 +0000 http://code.openark.org/blog/?p=1330#comment-4279 Hi Shlomi! Nice trick. I'm not entirely convinced though, but it looks promising. I'll do my best to try and falsify the result (:p) not to bug you of course, but to achieve more certainty that this is indeed reliable. Thanks so far :) Hi Shlomi!

Nice trick. I’m not entirely convinced though, but it looks promising. I’ll do my best to try and falsify the result (:p) not to bug you of course, but to achieve more certainty that this is indeed reliable.

Thanks so far :)

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