- Modifications are not cacheable. Results of an insert should not be cached :) .
- Extended the cached data so that more methods in the wrapped reader could be implemented. For instance the field names and schema.
- Don't cache when the data reader hasn't been read to the end.
- Fixed the loading of assemblies (done to find the referenced EF files) so it works better with GAC-ed assemblies.
- Fixed a rather nasty issue in DbCommandTreeScanner. This class implements the visitor pattern for a command tree and is needed to determine the affected entity sets. However, in certain large statements (yes, the question is if it is wisdom to use those, but that's a different issue), this resulted in a stack overflow. Auch. By pruning constants out of the visited expressions early on, I was capable of avoiding the stack overflow.
Besides that, I extended the caching policy so that the expiration can be specified by entity. When multiple entities are affected, I take the smallest expiration across the affected entities.
With a little work, the provider wrapper turns out to be rather useful.
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