Issue Comments

ISSUECOMMENTS
Column	ID	ISSUEID	AUTHOR	CREATED	UPDATER	UPDATED	MIMETYPE	BODY	ROLEID
Type	BIGINT	BIGINT	VARCHAR	TIMESTAMP	VARCHAR	TIMESTAMP	VARCHAR	VARCHAR	BIGINT
Indexed	x	x

Example

My reported issues with no comments:

Example 1

select
 LINK(JQL.ISSUE, '_blank') as "Issue"
from
 JQL 
  left join 
 issuecomments c on c.issueid=JQL.issueid
where 
  jql.query = ' reporter = currentUser() '
group by 
  JQL.ISSUEID
having count(*) = 0