> Date: Sat, 26 Mar 2005 10:35:07 -0600
> From: KAROL GUZMAN <[log in to unmask]>
>
> Hello, I am buiding a SRW server. It seraches in some
> nodes at the same time. I want to implement explain
> operation, but I dont know how, If I have some
> database., because in ZeeRex Record I onli have one
> tag of database. Is posible to use explain when I use
> more that one database or is only for one database
> that search at time?

Very interesting question.  So far as I know, we have given _no_
thought to the question of how, using ZeeRex, to represent a database
that is a virtual union of several others.  Off the top of my head, I
don't think multiple ZeeRex records would be the way to go (even if
the syntax supported it, which it doesn't).  The right approach is
probably to craft a single ZeeRex record, describing the union as a
whole rather than its constituents.  But I am interested to hear
others' thoughts on this.

 _/|_    _______________________________________________________________
/o ) \/  Mike Taylor  <[log in to unmask]>  http://www.miketaylor.org.uk
)_v__/\  "Did you say ... knives?" / "Yes, that's right, rotating
         knives ..." / "Oh, sorry, perhaps we didn't make that clear.
         We weren't planning to slaughter our tennants" -- Monty
         Python's Flying Circus.

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