Re: Optimisation (was Remove duplicates from a list)
Kay Michael wrote: > > > This is entirely conjecture, but I predict that optimization > > will follow a similar path as programming language compilers. > > Yes, though I suspect SQL is a better analogy, because we're dealing with a > more declarative language. And it took about 10 years for the theory of SQL > optimisation to become refined. Yes, that is a better analogy. It makes me wonder, even today, if you have a complex SQL query, you're often better off giving optimization hints instead of letting the query optimizer have at it. That's the case we've found with MS SQL Server, anyhow, which maybe is damning in and of itself :) How much has optimization played into the design of XSL and XPath? Have the XSL processor implementors been able to suggest modifications to the spec to improve the optimizability? Apologies if the answers should be obvious to me. Tim XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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