I am still a bit humble with mongo queries, is it possible, or - regarding performance - necessary, to put the following MongoDB query into a smarter form? Does the double use of $elemMatch affect performance?
Example for a db full of chicken-coops:
{chickens: {$elemMatch: {recentlyDroppedEggs: {$elemMatch:{appearance:"red-blue-striped"}}}}}
for finding all chicken coops that have a chicken (in its chickens-array) which recently dropped a red-blue-striped egg (into its recentlyDroppedEggs-array).
Thanks for any hints!
