From: | Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: First version of multi-key index support for GiST |
Date: | 2001-06-01 09:41:53 |
Message-ID: | Pine.GSO.4.33.0106011217520.12658-100000@ra.sai.msu.su |
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Lists: | pgsql-hackers |
On Thu, 31 May 2001, Tom Lane wrote:
>
> they should have been using "Datum". This doesn't completely free GIST
> from datatype assumptions: it still assumes that all datatypes it deals
> with will be pass-by-reference. But it's a step forward. This means
I'm afraid this problem is connected with the problem of index_formtuple -
all keys (even btree_ops) are greater than 4 bytes, so it's impossible
to pass them by value. They should be pass-by-reference.
So, probably functions gistindex and gistbuild should be modified for
translation from pass-by-value to pass-by-reference. Your comments ?
>
> regards, tom lane
>
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83
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