From: | Vanmunin Chea <vac(at)cse(dot)unsw(dot)EDU(dot)AU> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: If there a bug in the psql or just a feature . |
Date: | 2002-09-10 15:22:40 |
Message-ID: | Pine.LNX.4.44.0209110115010.5039-100000@banjo14.orchestra.cse.unsw.EDU.AU |
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Lists: | pgsql-hackers |
Hey Tom,
Thanks for the tips, Tom. I have that feeling from the start
(with the two different implementation) but never actually have a chance
to confirm with someone.
1. It there a way to store the dynamic array at all ?
I notice psql has a similar type - Single Dynamic Dimensional
Array. However there isn't any built in operators(<,<=,==,>,>=) for Array
to do sorting.
2. Can I write one up ?
regards,
Van.
On Tue, 10 Sep 2002, Tom Lane wrote:
> Vanmunin Chea <vac(at)cse(dot)unsw(dot)EDU(dot)AU> writes:
> > // This one is not working
> > typedef struct Myindex {
> > double *indexes;
> > int level;
> > int size;
> > } Myindex
>
> You cannot use a pointer inside a Postgres datatype. The system will
> have no idea that the pointer is there and so will not copy the
> pointed-to data, nor update the pointer, when the datum is copied,
> stored on disk, etc.
>
> regards, tom lane
>
Vanmunin Chea
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