Very interesting paper, thanks. Seem to be more about LINQ to SQL, though: translating queries in a host language to sql queries against a db. It doesn't, for example, address indexing in-memory data.
On Monday, December 9, 2013 11:23:36 AM UTC-8, Jamie Brandon wrote: > > Take a look at "A practical theory of language-integrated query" at > http://homepages.inf.ed.ac.uk/wadler/topics/recent.html . In the FPDays > talk linked there Wadler demonstrated writing queries which returned > denormalised views on tables, composing those with queries on the > denormalised view and compiling the result into efficient sql that acts > over normalised tables. > > > On 9 December 2013 17:56, Brian Craft <craft...@gmail.com <javascript:>>wrote: > >> Slightly OT, but I know many of you have read OOTTP. >> >> This paper describes a hypothetical relational modeling infrastructure >> that allows declaring indexes on and writing queries against denormalized >> tables as though they were normalized tables. The point of this is to >> eliminate the complexity that comes from demands of performance: algorithms >> become more brittle and harder to understand when they must be rewritten >> for a denormalized data structure, for example. >> >> But does this infrastructure exist in the real world? I'm aware of >> various efforts to provide relational modeling in the application, LINQ, >> datomic, etc. But I haven't seen much in the way of indexing support, or >> support for logical/physical schema separation. Is there some obvious way >> to do these? Indexing in particular is critical. Hierarchical modeling >> provides very fast look-up. Switching to a relational model without indexes >> would mean potentially scanning millions of rows for every data access. >> >> -- >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@googlegroups.com<javascript:> >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+u...@googlegroups.com <javascript:> >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+u...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
