fj_backend varchar(255) NOT NULL,
-- The storage path that was affected (may be internal paths)
fj_path blob NOT NULL,
- -- SHA-1 file path hash in base-36
- fj_path_sha1 varbinary(32) NOT NULL default '',
-- Primitive operation description (create/update/delete)
fj_op varchar(16) NOT NULL default '',
-- SHA-1 file content hash in base-36