On Thu, 2007-11-29 at 21:25 +0200, Alex Mizrahi wrote: > > RLR> Postmodern does exactly the same thing that CL-SQL does in this > RLR> respect; the code was copied directly from the CL-SQL code. > > from original Henrik's announcement: > > ---- > The implementation is actually quite different from > the clsql backend. > ... > The db-postmodern cursor is based on a sql cursor. Each btree has its > own database table. > ---- > > IE> SQL backend cannot support the ordering constraints of an index > IE> without reading all the objects into memory > > and postmodern cannot support them too. > however we do not really need to support ordering to do by-value > queries. > as for by-range queries, they should work in db-postmodern when keys > are > strings-only or integers-only, which is probably most useful case. we > are > going to improve it to support NILs among values. >
I think this makes a lot of sense. _______________________________________________ elephant-devel site list elephant-devel@common-lisp.net http://common-lisp.net/mailman/listinfo/elephant-devel
