Re: PostgreSQL full text vs. MySQL
От | Richard Huxton |
---|---|
Тема | Re: PostgreSQL full text vs. MySQL |
Дата | |
Msg-id | 483BCF07.9060701@archonet.com обсуждение исходный текст |
Ответ на | PostgreSQL full text vs. MySQL (Skip Evans <skip@bigskypenguin.com>) |
Список | pgsql-general |
Skip Evans wrote: > I am wondering if I could get some opinions on PostgreSQL's full text > versus MySQL's and specifically I have not been able to find > documentation that MySQL supports lexeme type full text, able to locate > root words the way PostgreSQL 8.3 does. MySQL's full-text search is: 1. Isam-based only (afaik), so no transactions for you. 2. Much simpler than PostgreSQL's full-text searching Whether #2 is good/bad depends if you want simple or flexible. If you're starting to think about stemming or custom requirements already, I think you're probably ruling out MySQL anyway. From my (admittedly limited) knowledge of MySQL fti, you're able to replace the standard list of stopwords and set a minimum number of letters to count as a word and that's about it. The PostgreSQL system lets you chain dictionaries together, have multiple dictionaries per configuration or write a custom parser if really required. Complicated, but flexible. -- Richard Huxton Archonet Ltd
В списке pgsql-general по дате отправления: