Add support for dynamically extended queries as per LinqKit

The package LINQKit, a solution for making queries dynamically extendable at runtime, currently sits at half a million downloads for EF Core alone, with much more for traditional EF. The old uservoice forums had an [issue](https://data.uservoice.com/forums/72025-entity-framework-feature-suggestions/suggestions/2390752-add-support-for-dynamically-extended-queries-as-pe) with 114 upvotes, which puts it on the frontpage of that now shuttered forum. Dynamic queries like PredicateBuilder currently only exist as an external solution (as part of[ LINQKit](https://github.com/scottksmith95/LINQKit)). It would be preferable to have this functionality be part of EF Core. There are a dozen advantages for including this upstream: - No breakage of LINQKit with new EF Core Versions - Functionality should be part of the Core anyway, since what it offers fits the use cases attempted by EF Core pretty well - The maintainers themselves link to the uservoice forum, asking people to upvote inclusion in upstream - some parts of LINQKit could be optimized since then not everything would need to be extension methods, there are a lot of possibilities with API and Code Generation

Posted by fkorak on May 9, 2019, 1:07 PM

Tags

• support (Software)

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