Double mapping of values during Mantis migration
Platform notice: Server and Data Center only. This article only applies to Atlassian products on the Server and Data Center platforms.
Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
During migration from Mantis to JIRA, the values of a custom attribute in Mantis appeared twice.
Diagnosis
The value for the custom attribute appears once in Mantis
Cause
The custom field values are duplicated in the Mantis database
Resolution
The content on this page relates to platforms which are not supported. Consequently, Atlassian Support cannot guarantee providing any support for it. Please be aware that this material is provided for your information only and using it is done so at your own risk.
Remove duplicated values in Mantis database. To find possible values for specific field, JIRA Importer (JIM) is running SQL query:
SELECT DISTINCT value FROM mantis_custom_field_string_table WHERE field_id=<ID of a field>;