Support Compiled LINQ
Performance boost of using compiled LINQ is tremendous. It would be nice if DataServices would compile-cache query expressions coming to server based on usage statistics. Queries with Skip and Take can be left out for sure but there are always sort of static queries that differ only in query parameters department and caching those would be huge advantage.
Cyril DURAND commented
Actually, EF5 support auto-compiled query. In simple case, WCF Data Services will benefit from this feature. But, if we have parameter, the query will be compiled for each parameter value :(
see http://data.uservoice.com/forums/72027-wcf-data-services-feature-suggestions/suggestions/3121561-use-parameterexpression-to-improve-performance-wit to vote on the idea for modifying this feature