Re: TODO: Fix CREATE CAST on DOMAINs
От | Martijn van Oosterhout |
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Тема | Re: TODO: Fix CREATE CAST on DOMAINs |
Дата | |
Msg-id | 20060920204838.GG7888@svana.org обсуждение исходный текст |
Ответ на | Re: TODO: Fix CREATE CAST on DOMAINs (Mark Dilger <pgsql@markdilger.com>) |
Ответы |
Re: TODO: Fix CREATE CAST on DOMAINs
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Список | pgsql-hackers |
On Wed, Sep 20, 2006 at 10:26:55AM -0700, Mark Dilger wrote: > I have thought about this some more. I think these are indeed SAFE. The > distinction between SAFE and IMPLICIT should not, I think, be whether the > storage type is identical, but rather whether there is any possible loss of > precision, range, accuracy, etc., or whether there is any change in the > fundamental interpretation of the data when cast from the source to > destination type. My question is whether there should be any implicit casts that are not safe. Your example int8 -> float8 being implicit is I think an error and we should wonder why that cast implicit now anyway. Have a nice day, -- Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > From each according to his ability. To each according to his ability to litigate.
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