Clover Merge of DB

[arieskeds]

Hello Clover Team,

I am using Openclover to track the code coverage of my java web application. As part of my daily deployments, I create a new DB and keep the old generated DB in my archive. At the end of the month I tried to merge all the clover DBs to get a consolidated report out of the merge DB to track how much code was executed and what is left to be covered.
While doing this activity in march I had a class A which has about 50% code coverage and now in April when I try to merge the DB, I see no coverage for that class A. Ideally, as an outcome of this merge, Class A should have at least 50% coverage.

Did anyone come across this issue earlier that coverage b/w 2 DBs can lose during merge.
Additionally, if my Java file is changing within this time, will this cause a problem in merging.
Also, say in march for Class A i had covered 50% execution and in April i did covered additional 30%, will merge give me 80% or 50% or 30%, assuming the class was never changed.
What happens in above situation if the class has changed ?

[arieskeds]

Hi Clover Team,

Please let me know if anyone can advise about above mentioned issues.