Please stop all this discussion of patents in this area. Bringing up a US patents here makes US list members more likely to be treated as willful infringers of that patent: if the PostgreSQL code duplicates that method one day.

The idea of surveying patents in some area so that their methods can be avoided in code you develop, that is a reasonable private stance to take. But don't do that on the lists.

Greg Smith   2ndQuadrant US   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support

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