Arangodb UPDATE 2 different documents in 1 AQL

Question

How can we do it since

For v in relation

UPDATE { _key: v._from,"foo": false } IN A
UPDATE { _key: v._to,"foo": false } IN A

would return error of reading modified data. What is the correct way of doing this in AQL?

Answer 1

From the docs

Only a single UPDATE statement per collection is allowed per AQL query