Fix expression constant in contains

[zulander1]

Fixes #409

[slorello89]

@zulander1 - try with the updates I just made on your branch, think that ought to work. This is a pretty interesting usecase of Redis OM, one thing I noticed though was that it doesn't seem to issue any Select predicates if you don't request the full object - wonder what that's about?

[zulander1]

@zulander1 - try with the updates I just made on your branch, think that ought to work. This is a pretty interesting usecase of Redis OM, one thing I noticed though was that it doesn't seem to issue any Select predicates if you don't request the full object - wonder what that's about?

Yeah, there is an issue with the Select, but not with the predicates, it doesn't want to create a new instance of the object... I didn't have time to look into, will do this week; i'll let you know if the fix work for the constant issue!

[slorello89]

@zulander1 - I'm assuming it's nothing on Redis OM's end? I just don't see anything in the predicates being pushed down to it.

[zulander1]

@slorello89 Wow it's working flawlessly! For the Select predicates we need to use UseProjection, i've updated the example

[vbedekar]

Any timeline when we can see this in a new release

[slorello89]

LGTM 👍