The pgx_tablespaces catalog provides information related to the encryption of tablespaces.
Name  | Type  | References  | Description  | 
|---|---|---|---|
spctablespace  | oid  | pg_tablespace.oid  | Tablespace OID  | 
spcencalgo  | text  | Tablespace encryption algorithm  | 
The spcencalgo string displays one of the following values:
none: Tablespace is not encrypted
AES128: AES with key length of 128 bits
AES256: AES with key length of 256 bits