Re: search engines
От | David Griffiths |
---|---|
Тема | Re: search engines |
Дата | |
Msg-id | 002f01c1bb0f$3f13f2a0$6601a8c0@griffiths обсуждение исходный текст |
Ответ на | search engines (bruces@real-info.com (Bruce Schreiber)) |
Список | pgsql-general |
All data is kept in memory, and a search engine is actually a cluster of hundreds of computers. Every web page is heavily indexed, and the indexes may be divided up across many computers. Thus, your search hits several computers at a single time. Because each machine has gigabytes of web-page indexes, it can quickly gather all results. They are then sorted and return to the user. David ----- Original Message ----- From: "Bruce Schreiber" <bruces@real-info.com> To: <pgsql-general@postgresql.org> Sent: Thursday, February 14, 2002 10:56 AM Subject: [GENERAL] search engines > How can search engine search through millions of records in just a few > seconds? > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org
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