Is this possible?
It would make enforcing relationships easier.
Eg a like document id could be that of the post and user like this
likeId: postId_userId
As far as I can tell UUIDs need at least 16 chars.which is still possible without the underscore if using ID.unique, but using a client side id generation wouldn’t work since they are usually longer.
TL;DR
Developers are asking if it's possible to increase the max length of DocumentId for easier relationship enforcement. They suggest creating IDs like postId_userId. UUIDs need at least 16 characters, which is still possible for this format. However, client-side ID generation with longer IDs wouldn't work.