Function changeFeedDurableKey

fdbclient/SystemData.cpp:1279–1285

const KeyRef changeFeedDurablePrefix = changeFeedDurableKeys.begin;

const Value changeFeedDurableKey(Key const& feed, Version version) {
	BinaryWriter wr(AssumeVersion(ProtocolVersion::withChangeFeed()));
	wr.serializeBytes(changeFeedDurablePrefix);
	wr << feed;
	wr << bigEndian64(version);
	return wr.toValue();
}
std::pair<Key, Version> decodeChangeFeedDurableKey(ValueRef const& key) {
	Key feed;
	Version version;