Can anyone help me to construct a JQL to find all the bugs of feature with custom field value ?

[Yatiraj Sharma]

I want to find all the Bugs of Features which has custom field value like below.

project = ABC AND issuetype = Bug AND issue in parentIssuesOf("cf[12118] ~ 'Proposition'")

Or using issues in issuesInEpics("project = ABC  AND "cf[12118] ~ 'Proposition'")

[Yatiraj Sharma]

Have tried issueIn Epics however if you have custom field then you have to use \'{custom field name}'\ within the subquery of the function.

project = ABC AND issueFunction in issuesInEpics("issuetype = Feature AND \'cf[12118]'\ ~ 'Proposition'") AND issuetype = Bug