* A document with the same path may occur than once in a database. If this is unwanted, [[#REPLACE|REPLACE]] can be used.
* If a file is too large to be added in one go, its data structures will be cached to disk first. Caching can be enforced by turning the [[Options#ADDCACHE|ADDCACHE]] option on.
If files are to be added to an empty database, it is usually faster to use the [[#CREATE DB|CREATE DB]] command and specify the initial input as argument.
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