[basex-talk] Gets name of collection

Hi BaseX team, I 've met a problem of getting the name of the collection when retrievingXQuery. I am looking for a node satisfying a certain condition on multiple collections (each collection is a database of BaseX), when it returns a result, I want to know the name of that collection. For example, here is my query: for $node in (Collection("Database1"),Collection(Database2"))/a[@attribute = "name"] return $node // I want to get of the name of the collection of the returned node here. I don't know if BaseX supports a certain function to get the name of the collection from a node or something similar. Or does it has a way to know the node belongs to which collection?