Neo4j

Are there any performance differences running these to queries? Assuming the label always staying the same will the query planner perform nearly identical because the Statement get translated internaly to nearly the same? UNWIND {batch} as row CREATE...

I tried to merge a node with apoc.merge.node but my ident property keys have a special char(:) and get double escaped. Did i miss something or does a workaround exist? If i replace the ":" with "_" everything works as expected. Neo4j 4.2.1 community ...

The documents in m MongoDB have a _id of type ObjectId. In Neo4j a node has a reference to the document by the ObjectId as a string representation. But i can´t figure out how to query a document by the ObjectId as a string using apoc.mongodb. Neo4j 4...