7.1. The "optimize" command  ... However, for a large FTS table, running optimize can be as expensive as running VACUUM. The optimize command essentially has to read and write the entire FTS table, resulting in a large transaction. In batch-mode operation, where an FTS ... 

12. Cryptographic Hashes Of Database Content  ... This means, for example, that a VACUUM or similar data-preserving transformation does not change the hash. The ".sha3sum" command supports options "--sha3-224", "--sha3-256", "--sha3-384", and "--sha3-512" to define which variety of SHA3 to use for ...