Re: Re: Null-safe GiST interface (proposal) - Mailing list pgsql-hackers

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@sai.msu.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
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 4: Don't 'kill -9' the postmaster
> >
> 
>     Regards,
>         Oleg
> _____________________________________________________________
> Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
> Sternberg Astronomical Institute, Moscow University (Russia)
> Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
> phone: +007(095)939-16-83, +007(095)939-23-83

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> 
> ---------------------------(end of broadcast)---------------------------
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