Ihre Anfrage
INSERT INTO custom_values
(Issue, issues.id, 4, versions.name)
SELECT * FROM issues INNER JOIN versions ON issues.fixed_version_id=versions.id;
sollte dahingehend geändert werden
INSERT INTO custom_values
(customized_type, customized_id, custom_field_id, value)
SELECT 'Issue', issues.id, 4, versions.name
FROM issues INNER JOIN versions ON issues.fixed_version_id=versions.id;
um gültiges SQL zu sein.
Aber ich würde die DB trotzdem sichern... :-)