I've taken the approach of converting my models to XML, mostly because they map 1:1 from F#-land to XML-land, and I can use SQL Server's XML Indices, but most importantly, I can use XSLT to evolve my persisted models upon change change to F# code.

Then using a bit of F# Quotations, I can convert most match queries to XPath queries and query SQL Server directly (still work-in-progress).

But running into performance problems, so it's not 100% done.

http://stackoverflow.com/questions/41949177/f-data-types-sql...