On Tuesday 16 June 2009 16:22:27 Robert Haas wrote: > 1. It didn't seem very wise to go with the approach of trying to do > EVERYTHING with attributes. If I did that, then I'd either get really > long lines that were not easily readable, or I'd have to write some > kind of complicated line wrapping code (which didn't seem to make a > lot of sense for a machine-readable format). The current format isn't > the most beautiful thing I've ever seen, but you don't need a parser > to make sense of it, just a bit of patience.
There are obviously a lot of ways to go about defining an XML format, but here is another one of them: A plan is a tree of plan nodes. Each node has some information attached to it, such as row counts and costs. If you consider an XML document to be a tree of element nodes, then this falls into place naturally. Each plan is an element, and all the other information are attributes. With this, visual explain would be completely trivial. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
