Can data-types be changed in datomic cloud? I have a :db.type/string that I want to convert to :db.type/long. Every string in the db is a number, but the datomic cloud docs make no refence to type changes.

https://docs.datomic.com/cloud/schema/schema-change.html

see the note at the bottom

@jatkin ^

> `NOTE: You can never alter :db/valueType, :db/tupleAttrs, :db/tupleTypes, or :db/tupleType.

you can create a new attribute with the type you want and manually “move” the data over

and you can rename the ‘old’ attr if you want to end up with a new attribute that uses the same name as the original