Yes, if it “takes a long time to go look at a database and do some post-processing”, that would be a case where (as I put it) “there is a retrieval operation involved and it might be expensive”, and then we might want a name that makes it easier to guess that it might be expensive.
Yes, if it “takes a long time to go look at a database and do some post-processing”, that would be a case where (as I put it) “there is a retrieval operation involved and it might be expensive”, and then we might want a name that makes it easier to guess that it might be expensive.