How many mappings is too many?

I did a quick search but couldn't find anything on this topic.

We have a parent/child/grandchild relationship and our system has a dynamic
number of parent mappings, but our child/grandchild mappings have a strict
schema. This is because the data in the parent mapping is undefined and
user submitted.

So two questions:

  1. Is OK to have thousands of parent mappings (which means thousands of
    child/grandchild mappings as well since a child can only have one parent)
  2. Would a better approach be to have one massive parent mapping
    (potentially tens of thousands of fields)?


~ Gregory

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