seeking advise on char vs text or varchar in search table

Поиск
Список
Период
Сортировка
От chrisj
Тема seeking advise on char vs text or varchar in search table
Дата
Msg-id 10103002.post@talk.nabble.com
обсуждение исходный текст
Ответы Re: seeking advise on char vs text or varchar in search table  ("Merlin Moncure" <mmoncure@gmail.com>)
Список pgsql-performance
I have a table that contains a column for keywords that I expect to become
quite large and will be used for web searches.  I will either index the
column or come up with a simple hashing algorithm add the hash key to the
table and index that column.

I am thinking the max length in the keyword column I need to support is 30,
but the average would be less than10

Any suggestions on whether to use char(30), varchar(30) or text, would be
appreciated.  I am looking for the best performance option, not necessarily
the most economical on disk.

Or any other suggestions would be greatly appreciated.
--
View this message in context:
http://www.nabble.com/seeking-advise-on-char-vs-text-or-varchar-in-search-table-tf3618204.html#a10103002
Sent from the PostgreSQL - performance mailing list archive at Nabble.com.


В списке pgsql-performance по дате отправления:

Предыдущее
От: Ulrich Cech
Дата:
Сообщение: Re: Large objetcs performance
Следующее
От: Tom Lane
Дата:
Сообщение: Re: postgres: 100% CPU utilization