Re: [HACKERS] Re: [SQL] Proposed Changes to PostgreSQL

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От Hannu Krosing
Тема Re: [HACKERS] Re: [SQL] Proposed Changes to PostgreSQL
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Msg-id 389A0364.A1E6E766@tm.ee
обсуждение исходный текст
Ответ на Proposed Changes to PostgreSQL  (Chris Bitmead <chrisb@nimrod.itg.telstra.com.au>)
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Chris wrote:
> 
> Hannu Krosing wrote:
> 
> > Maybe SELECT ** FROM BASE would be more flexible as it leaves the standard
> > SQL with its "standard" meaning ?
> 
> That was my first thought and it's definitely a possibility. My argument
> against it is that SQL doesn't have a "standard meaning" in the case of
> inheritance, and ** is an incompatibility with OQL.
> 
> I suspect we need both. Something like
> SET GET_INHERITED_COLUMNS true; etc.
> 
> > We will have to change the API sometime not too distant anyway, the current
> > api is unable to deal with anything that does not have a nice textual
> > representation (like an image or sound) in spite of all the talks about
> > easy extensibility - the extensibility is all in the backend, ther is no
> > easy way to get new datatypes in/out.
> 
> What about PQbinaryTuples() and friends?

They don't help you at all when doing inserts and are by definition in native
byte order on queries.

Something like [ PREPARE query; BIND arguments ; EXEC ] which knows about
binary 
formats would be needed here.

One could use LOs except that the current ineffective implementation.

-------------
Hannu


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