How to fix incorrect time spent per assignee in reports?

[Serhii Starchenko]

Recently I have a task to make a report on how much time resource spent per tasks since the beginning of 2018. I've downloaded a report using filter 

project = "Project" AND createdDate > startOfYear()

and noticed that when assignee is changed (e.g. when person completed a task and change assignee for review), the task is reported to that person. So person who spent 95% of tasks' reported time has no statistics. 

So when I want to make a workload report it is not accurate. 

Do I have a chance to see a correct time spent per team?

[Danyal Iqbal · Accepted solution]

No- you cannot do this in retrospect. This works as intended. You should not change the assignee of the issue for review (bad practice). Add a new user picker field  called Reviewer to your issue and add the reviewer in this field.

[Serhii Starchenko]

Thanks. I assumed it, just wanted to confirm.

[Rambabu Patina _Appfire_]

You cannot query worklog information using JQL. Please see the similar question here https://community.atlassian.com/t5/Jira-questions/Time-spent-on-JIRA-issues-group-by-User/qaq-p/49425. Hope this helps you.