theoretical limits on entityoperator.in?

[Si Chen]

Is there any theoretical limit on entityoperator.in -- ie, how large  
a list it can take?  I'm thinking of re-factoring the  
ViewFacilityInventory report in facility to use this instead of  
joining on productcategorymember so that it can be used to pull  
variants of virtual products as well, but sometimes there could be a  
lot of variants and a pretty large list -- a few hundred products, etc.

Si