Arango Remove Attribute

When updating documents, ArangoDB only touches the attributes specified in the `WITH` clause.

• 10 February 2025
• cursed,
• cursed-knowledge,
• arangodb

When searching for a way to remove an attribute in an ArangoDB document, I found the UNSET function. Unfortunately, this sets the attribute to null which is not what I intended.

I found this StackOverflow answer that resolves the issue.

FOR doc IN Collection
UPDATE doc WITH { my_key: null } IN Collection
OPTIONS { keepNull: false }

keepNull: false may sound scary if you have null attributes already in the document that you want to preserve, but the cursed part is when updating documents, ArangoDB only touches the attributes specified in the WITH clause.