jira - JQL find child of a specific issue

[Saraswathy Jayakumar]

So I have this:

project = XYZ AND issueLinkType = "is a child of"

Shows all the issues that are a child of an issue.

How do I modify this so that I get only a child of a specific issue?

I found this syntax on the web : 

issue in linkedIssues(DMC-24,"is a child of")

But I need to check  specifically one child issue not specific to a particular issue(Key) ?

[Mark Segall]

Hi @Saraswathy Jayakumar and welcome to the community!

Your hosting type isn't tagged, but if you're on cloud, you could do something like this:

issueIsChildOf = DMC-24