@Override
    public void writePayload(final Output output) {
        if (!producePayloads) {
            throw new RuntimeException("Not producing payloads");
        }
        payloadCreator.writePayload(output);
    }
Write data from the data store to an output removing them from the datastore as we go as they will be transferred
to another store.

@param output The output to write to.
stroom-query/stroom-query-common/src/main/java/stroom/query/common/v2/LmdbDataStore.java