presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/RecordingHiveMetastore.java/RecordingHiveMetastore/listTablePrivileges
class RecordingHiveMetastore:    @Override
    public Set<HivePrivilegeInfo> listTablePrivileges(String databaseName, String tableName, String tableOwner, Optional<HivePrincipal> principal)
    {
        return loadValue(
                tablePrivilegesCache,
                new UserTableKey(principal, databaseName, tableName, tableOwner),
                () -> delegate.listTablePrivileges(databaseName, tableName, tableOwner, principal));
    }