Re: Fixed length data types issue
От | Martijn van Oosterhout |
---|---|
Тема | Re: Fixed length data types issue |
Дата | |
Msg-id | 20060907110233.GG10093@svana.org обсуждение исходный текст |
Ответ на | Re: Fixed length data types issue (Gregory Stark <stark@enterprisedb.com>) |
Ответы |
Re: Fixed length data types issue
Re: Fixed length data types issue |
Список | pgsql-hackers |
On Thu, Sep 07, 2006 at 11:57:26AM +0100, Gregory Stark wrote: > Just brain storming here. But what happens if we make Datum 2*sizeof(pointer) > and stored the typmod and/or attlen in it? The fundamental property of a Datum is that you can pass it by value to a C function. This generally means it has to fit in a register. On the whole, the CPU register size is the same as the pointer size, so 2*sizeof(pointer) is unlikely to fit... 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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