Hello everyone,
I've been dabbling with some SQL statements to try and pull data direct from the Oracle database. Most recently I got a list of all custom fields with a pretty basic query:
Select id, cfname, description FROM customfield ORDER BY cfname ASC
I got a display of all my custom fields, but I noticed that quite a few cfnames were repeated with different ids. For example:
ID CFName
10568 Contact Role
10567 Contact Role
10570 Contact Role
10569 Contact Role
I went back into JIRA, went to the Issues administration tab, and clicked on Custom Fields. Sure enough, I see four listings for Contact Role, and they are identical in every way.

Can anyone explain how this is possible? I now see this for quite a few custom fields.