Horton

contrib/tree

Oleg Bartunov <oleg@sai.msu.su>

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From: Oleg Bartunov <oleg@sai.msu.su>
To: <dhogaza@pacifier.com>
Cc: Pgsql Hackers <pgsql-hackers@postgresql.org>
Date: 2002-01-25T19:17:34Z
Lists: pgsql-hackers 
Don,

does your approach handle directed graphs ( DAG ) ?
Actually our module is just a result of our research for new
data type which could handle DAGs ( yahoo, dmoz -like hierarchies)
effectively in PostgreSQL.
While we didn't find a solution we decided to release this module
because 64 children would quite ok for many people.
Of course, 128 would be better :-)

How about 'move' operation in your approach ?

	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