Why do many fields looks like duplicates in JQL?

[Fazila Ashraf]

Why do many fields looks like duplicates in JQL?

Like ,

• type and issuetype
• key and issuekey
• created and createdDate
• updated and updatedDate
• and other date fields..

Are there any real uses and differences for these fields?

[Nic Brough -Adaptavist- · Accepted solution]

They don't "look like duplicates" - a duplicate would mean two fields that contain potentially different data.

They are aliases - one field with two or more names.  The reason they exist is partially because some developers thought it might be good to allow them to use the fields internal name, and partly because users were frequently using the wrong name in searches and it's easier to allow them to do that than explain that you have to use the display name all the time.

[Fazila Ashraf]

Thank you Nic! While i was posting this question, i was actually hoping you would answer this one :)

[Alexey Matveev]

I would add issuekey and key. I ve never seen any differences with such fields.

[Fazila Ashraf]

Good one.. updated the question..