Re: NUMERIC private methods?
От | Alvaro Herrera |
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Тема | Re: NUMERIC private methods? |
Дата | |
Msg-id | 20141219025137.GS1768@alvh.no-ip.org обсуждение исходный текст |
Ответ на | Re: NUMERIC private methods? (Robert Haas <robertmhaas@gmail.com>) |
Ответы |
Re: NUMERIC private methods?
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Список | pgsql-hackers |
Robert Haas wrote: > I think that's ridiculous. You're basically arguing that numeric > doesn't offer meaningful advantages over float8, which flies in the > face of the fact that essentially every database application I've ever > seen uses numeric and I'm not sure I've ever seen one using float8. > Nearly all database users prefer to store quantities like currency > units in a type that is guaranteed not to lose precision. I think it's reasonable to expose NumericVar and the supporting function prototypes in, say, numeric_internal.h; normal applications that just want to operate on numerics as today can just include numeric.h, and continue to be at arms-length of the implementation details, while code that wants to optimize operations further can use numeric_internal.h and be very aware that they are subject to heavy breakage if we ever feel a need to change the internal API. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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