presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/RecordingHiveMetastore.java/RecordingHiveMetastore/getDatabase
class RecordingHiveMetastore:    @Override
    public Optional<Database> getDatabase(String databaseName)
    {
        return loadValue(databaseCache, databaseName, () -> delegate.getDatabase(databaseName));
    }