RE: key declarations (using a sequence constructor)
> Do they just make > a string with some kind of separator breaking up the attributes? > Isn't there a chance of this failing if the character used > for the separator is used in one or more of the attributes? > Yes, and yes. Unicode gives a wide range of characters to choose from, including the Private Use area. An alternative approach is to create separate keys one for each attribute, and then to search using key('ka', @a) intersect key('kb', @b) Regards, Michael Kay http://www.saxonica.com/ http://twitter.com/michaelhkay
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