Re: Announcing RDFdb

Guha, Jeen,

the only change I made on Solaris was to include the socket library for
linking, i.e. in makefile, replace

	LIBS     = -ldb -lpthread
by
	LIBS     = -ldb -lpthread -lsocket

Guha, query optimization for a homogeneous triple store might need some
novel techniques. A traditional DBMS can hardly maintain
useful statistics across all value combinations. Therefore, bad query
plans are often generated. I have some ideas, let's talk about it, 
I'll be back next week.

Sergey


On Fri, 18 Aug 2000, Guha wrote:

> Hi Sergey,
> 
>  Did you have to make any chage to the code to get it running
> on Solaris?
> 
>  I have plans of supporting reification. Just haven't done it yet.
> 
>  The indexes are currently built on b-trees provided by Sleepycat.
>  I am working on a "nested hash" structure which is more appropriate
> for graphs. The "join algorithm" is fairly straightforward and
> only uses conjunct ordering for optimization. I plan to implement
> a lot of the optimizations used in cyc, lore, etc.
> 
>  Thanks! Do you have any suggestions, advice, etc? We should talk
> about this sometime.
> 
>  Guha