I was reading about document routing with CompositId
The document says that I could prefix a shard key to a document ID like
“IBM!12345”. It further mentioned that I could specify the number of bit for
the shard key like “IBM/3!12345”. My question is, what is the default number of
bit for the shard key when it is not specified? That is, what is n when
“IBM/n!12345” is equivalent to “IBM/12345”.
Another question is regarding 2-level routing prefix. Does it support number of
bit as well? For example, does something like “USA/2!IBM/3!12345” work?
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