Re: char(0)
От | Susanne Ebrecht |
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Тема | Re: char(0) |
Дата | |
Msg-id | 4E9D8F6D.6030300@2ndQuadrant.com обсуждение исходный текст |
Ответ на | Re: char(0) (Andreas Pflug <pgadmin@pse-consulting.de>) |
Ответы |
Re: char(0)
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Список | pgsql-bugs |
On 17.10.2011 16:41, Andreas Pflug wrote: > Am 17.10.11 10:53, schrieb Thomas Kellerer: >> Susanne Ebrecht, 17.10.2011 09:31: >>> Hello, >>> >>> I couldn't find that somebody already mentioned it. >>> >>> PostgreSQL isn't supporting CHAR(0). >>> >>> An empty string has a length of 0. >>> >>> CHAR(0) can have two values: NULL and empty string. >>> >>> In MySQL it is very common to simulate not null boolean >>> by using CHAR(0). >>> >>> This is a little bit annoying on migration topics. >> While not move on to a cleaner approach during the migration and use a >> "boolean not null"? > Sounds much too straight forward, not mysql-ish artistic enough... Depends if you want / are able to touch the application source code or not. Susanne -- Susanne Ebrecht - 2ndQuadrant PostgreSQL Development, 24x7 Support, Training and Services www.2ndQuadrant.com
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