[BioSQL-l] left_value and right_value in taxon table

[aaron.j.mackey at gsk.com]

> On Apr 8, 2008, at 11:58 AM, aaron.j.mackey at gsk.com wrote:
> > I believe that the first thing the load_ncbi_taxonomy.pl script 
> > does is to
> > wipe out everything already in the table.
> 
> That may have been in true in its beginnings but hasn't been for a 
> long time :-) It only updates changed nodes, adds new ones, and 
> deletes retired ones (unless you say --nodelete). The script does 
> recompute *all* nested set values, though.

Ahh right, I remember all that now.  It was the wiping out of the 
left/right values that I was thinking of.

Thanks,

-Aaron