cache_only mode update should only save fields in fieldlist
broke the CACHE_ONLY read case with my last commit
Merge pull request #182 from akhileshgupta/unstable

cache_only mode update should only save fields in fieldlist
adding support for smartsql with where clause to MockSmartstore
Merge pull request #183 from akhileshgupta/unstable

adding support for smartsql with where clause to MockSmartstore