Re: varchar vs. text
От | Michael Garriss |
---|---|
Тема | Re: varchar vs. text |
Дата | |
Msg-id | 3F69366B.6080902@earthlink.net обсуждение исходный текст |
Ответ на | Re: varchar vs. text (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-general |
Tom Lane wrote: >Michael Garriss <mgarriss@earthlink.net> writes: > > >>I curious about the benefits of a varchar over text. >> >> > >1. Compliance to the letter of the SQL spec. >2. Ability to define a maximum length, if you happen to feel the need to > impose a specific maximum length. (If you don't have a good reason > to impose any particular max length, this is a minus not a plus, > because the spec says you have to pick one anyway.) > > > >>Is it speed, >> >> > >It's a loser on speed because of the extra cycles spent to check the >max length. Other than those cycles, there is no difference. > > regards, tom lane > > > Thanks for the quick response. Michael P.S. The code I'm writing is going to be ported to MySQL by a friend. Do you have any idea if TEXT is supported over there?
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