Re: Relational query with path expressions

David BL wrote:
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at least one nuance of TCLOSE here without mention of recursive structures to ease the practical problems. more mixing up of physical and logical, not to mention the 'choices' presented as alternatives, when one of them Codd called the 'connection trap' about forty years ago.

just a suggestion, start a phony family tree at ancestry.com, try to put in a source for a marriage between two people and then check if ancestry's pathetic interpretation of the hierarchical gedcom so-called standard assigns the source to both spouses.

also consider the rather logical definition of cousin on wikipedia and ask whether the offered syntax can ever possibly deal with zeroth cousins (siblings) or second cousins, not to mention cousins several times removes.

you have every right to express various motives here, but they look to me, too scatterbrained for most non-mystics to comprehend. Received on Sat Apr 04 2009 - 05:05:28 CEST