Re: Re: Null-safe GiST interface (proposal)

Main patch applied. I did not apply the test code patch. Thanks.

> Hi,
>
> please apply patch to current CVS which implements:
>
> 1. null-safe interface to GiST
> (as proposed in http://fts.postgresql.org/db/mw/msg.html?mid=1028327)
>
> 2. support for 'pass-by-value' arguments - to test this
> we used special opclass for int4 with values in range [0-2^15]
> More testing will be done after resolving problem with
> index_formtuple and implementation of B-tree using GiST
>
> 3. small patch to contrib modules (seg,cube,rtree_gist,intarray) -
> mark functions as 'isstrict' where needed.
>
> Patch was intensively tested (attached test.tgz contains test suite):
>
> This is a generic test suite for GiST (7.2):
>
> 1. tests GiST multi-key indexes
> 2. tests null-safe interface to GiST
> (see proposal http://fts.postgresql.org/db/mw/msg.html?mid=1028327)
>
> USAGE:
>
> Create db and install contrib modules: intarray, rtree_gist, seg, cube.
> Edit gen.pl for $pgsqlsrc
> % perl gen.pl > /tmp/data
> % psql TESTDB < test.sql
>
>
> Regards,
> Oleg
>
>
>
> On Fri, 3 Aug 2001, Tom Lane wrote:
>
> > Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> writes:
> > > 2. For union and picksplit we propose to clean up NULLs from array of
> > > keys, so support of arguments 'passed-by-value' will not require
> > > changes of user interface. It would require some modification of current
> > > algorithm of splitting, but this wouldn't be a complex task for us.
> >
> > Seems reasonable. Would there ever be a union or picksplit method that
> > would want to do anything with nulls except ignore them? I can't think
> > of a reason to do differently, so you're just centralizing the logic to
> > ignore nulls in these methods.
> >
> > regards, tom lane
> >
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> >
>
> 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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>
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