strongloop/loopback-datasource-juggler — pull request #309 by manuelnaranjo (2014-09-24 12:02:05+00:00)
Title: Allow to filter by null value

There are cases where it's interesting to find all the elements that have a
property set to null, for example when a there's a relation and you want to
find all those objects without the relation.

I found out that mssql, mysql and I think also postresql provide this feature, just not the memory connector.