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in tests/test-sqlite3.sh (tests/test-generic.sh). There are lots of optimizations still TBD, and some things are REALLY slow right now (e.g. each add() operation takes 1/3 - 1/2 second) but it's ready for interested parties to poke it and prod it and see how (un)reasonable it is. Play away. Still to be implemented or improved: - tdb specials (@MODULES, @SUBCLASSES, etc.) - all DNs are case-folded in their entirty right now (since doing otherwise would require @ATTRIBUTES to be implemented) - speed improvements and optimizations. I am quite confident that the excessively slow add() operation can be much improved, and other areas can be somewhat improved.
trees.ps contains an explanation of the Genealogical Representation of Trees in Databases which is being used in ldb_sqlite3. Note that we use fgID representation with 4 bytes per level, so we can represent 6.5E+08 subclasses of any object class. This should be adequate for our purposes. :-) The following document is the primary basis for the schema currently being used here: http://www.research.ibm.com/journal/sj/392/shi.html