Are JIRA comment IDs unique within a JIRA instance?

[Ilana Radinsky]

I assume that JIRA comment IDs are unique within a particular JIRA ticket, but are JIRA comment IDs unique within the entire JIRA instance as well?

[Nic Brough -Adaptavist- · Accepted solution]

Yes.

That's a short answer, the underlying structure is that all comments belong to a single issue, and are objects containing a block of text, author, dates of create and update etc.  The uniqueness that gives them is not what makes them fully unique.  There is a simple number in a table that is not tied to anything on the comment or

[Mathis Hellensberg · Accepted solution]

Hi @Ilana Radinsky 

Yes they are otherwise .getCommentById() would be kinda useless :)

https://docs.atlassian.com/software/jira/docs/api/8.9.1/com/atlassian/jira/issue/comments/CommentManager.html