hi kentoku! i will try with mysql server but i got one question, why mariadb don't support VP? is something different that block using VP ?
2014-09-23 14:44 GMT-03:00 kentoku <kentokush...@gmail.com>: > Hi Roberto, > > Thank you for testing VP. > I'll think about this feature. > > Thanks, > Kentoku > > > 2014-09-21 18:10 GMT+09:00 Roberto Spadim <robe...@spadim.com.br>: > > Hi! Well i'm checking vp isn't part of mariadb today :/ maybe we should > port > > it first and after jmplement new features, right? > > > > Em domingo, 21 de setembro de 2014, Oleksandr Byelkin > > <sa...@montyprogram.com> escreveu: > > > >> Hi! > >> > >> On 21.09.14 05:06, Roberto Spadim wrote: > >> [skip] > >>> > >>> > >>> sounds crazy? :) > >>> ok i know that query cache have some problems with mutex, but it's > >>> another history we could have a better hit rate with this feature (at > least > >>> when correctly used) > >>> check that query cache become inconsistent if we change data1 or data2 > >>> outside vp table > >>> > >>> > >> > >> It is doable if put a lot of hooks of asking engine about tables. > >> > >> There is already hooks now used in table invalidation. But it works > slowly > >> (relatively) because having no open table difficult to give engine full > >> information and so each such hook will cause semi-open process and so > if we > >> have miss it looks like double opening overhead. > >> > >> So, in price of total overhead we can make it, the question is if it > help > >> so much that gain will be more then overhead in average... As usual I > have > >> doubts about it (need a proof). > >> > >> [skip] > > > > > > > > -- > > Roberto Spadim > > SPAEmpresarial > > Eng. Automação e Controle > > > -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle
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