Re: testing HS/SR - 1 vs 2 performance
От | Simon Riggs |
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Тема | Re: testing HS/SR - 1 vs 2 performance |
Дата | |
Msg-id | 1271419222.8305.8131.camel@ebony обсуждение исходный текст |
Ответ на | Re: testing HS/SR - 1 vs 2 performance (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>) |
Ответы |
Re: testing HS/SR - 1 vs 2 performance
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Список | pgsql-hackers |
On Fri, 2010-04-16 at 14:47 +0300, Heikki Linnakangas wrote: > Simon Riggs wrote: > > On Fri, 2010-04-16 at 11:29 +0300, Heikki Linnakangas wrote: > >> How does the attached patch look like? It's probably similar to what you > >> had in mind. > > > > It looks like a second version of what I'm working on and about to > > publish. I'll take that as a compliment! > > > > My patch is attached here also, for discussion. > > > > The two patches look same in their main parts, though I have quite a few > > extra tweaks in there, which you can read about in comments. > > Yeah. Yours seems a lot more complex with all those extra tweaks, I > would suggest to keep it simple. I did realize one bug in my patch: I > didn't handle xid wraparound correctly in the binary search, need to use > TransactionIdFollows instead of plan >. Almost done, yes, much simpler. I wrote a lot of that in the wee small hours last night, so the difference is amusing. And I spotted that bug, plus the off by one error also. Just rewritten all other parts, so no worries. -- Simon Riggs www.2ndQuadrant.com
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