Re: Block B-Tree concept
От | Heikki Linnakangas |
---|---|
Тема | Re: Block B-Tree concept |
Дата | |
Msg-id | 451D33D8.30708@enterprisedb.com обсуждение исходный текст |
Ответ на | Re: Block B-Tree concept (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: Block B-Tree concept
Re: Block B-Tree concept |
Список | pgsql-hackers |
Tom Lane wrote: > Heikki Linnakangas <heikki@enterprisedb.com> writes: > >> I'm not very interested in the case where you have a lot of equal keys, >> I think the bitmap index am is more suitable for that. >> > > that indeed you meant to write "consecutive", and I've got a problem > with that: define "consecutive". In a datatype independent fashion, > please. I also wonder how you are going to implement splitting and > merging of runs, which will certainly be necessary if this isn't to be > a constantly-requires-REINDEX thing. > I don't mean consecutive as in "1, 2, 3, 4, ... without gaps" but as in "A and B are consecutive in the index, if there's no value X in the index so that A < X < B". Maybe there's a better word for that. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com
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