Re: Question: pg_class attributes and race conditions ?
От | Joshua D. Drake |
---|---|
Тема | Re: Question: pg_class attributes and race conditions ? |
Дата | |
Msg-id | 45FAE8BF.5020905@commandprompt.com обсуждение исходный текст |
Ответ на | Re: Question: pg_class attributes and race conditions ? (Gregory Stark <stark@enterprisedb.com>) |
Список | pgsql-hackers |
Gregory Stark wrote: > "Joshua D. Drake" <jd@commandprompt.com> writes: > >> Just to throw my two bits in here :). If we do that, how does that >> effect the idea that most people in the web world use (id serial primary >> key), even though that is not what they are searching on? > > "affect". But I think you're right that generally you'll have two indexes. > >> More specifically, does HOT help conditions where a composite comes into >> play (session_id,last_active) ... which would be a more heavily updated >> index than just the primary key. > > Well if you're indexing a column that you're updating then you've already > failed your saving throw. Just for everyone who missed this. Greg Stark obviously spends his time (or at some time) playing|ed D&D. I have an Epic level Sorcerer, how about you Greg? ;) Sincerely, Joshua D. Drake -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since 1997 http://www.commandprompt.com/ Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate PostgreSQL Replication: http://www.commandprompt.com/products/
В списке pgsql-hackers по дате отправления: