I have a few questions about the "oc_filecache" table

Hello, I have a few questions about the “oc_filecache” table:

  1. Is the “oc_filecache” table stored temporarily or permanently? Because the table name “filecache” makes me confused. I feel that it is the meaning of file cache, so I want to get an authoritative answer.

  2. May I ask if some files exist in the hard disk but do not exist in the “oc_filecache” table? If this happens, how should I recover and solve it?

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