func (r *Record) Clone(dst sql.Record) sql.Record {
	other, ok := dst.(*Record)
	if !ok {
		other = &Record{}
	}
	if len(other.KVS) > 0 {
		other.KVS = other.KVS[:0]
	}
	other.KVS = append(other.KVS, r.KVS...)
	return other
}

// Set - sets the value for a column name.
func (r *Record) Set(name string, value *sql.Value) (sql.Record, error) {
	var v interface{}

						// order)
						kvs = mv.Value.(jstream.KVS)
					} else {
						// To be AWS S3 compatible Select for JSON needs to
						// output non-object JSON as single column value
						// i.e. a map with `_1` as key and value as the
						// non-object.
						kvs = jstream.KVS{jstream.KV{Key: "_1", Value: mv.Value}}
					}
					all = append(all, kvs)
				}
				// We don't need the input any more.

		}
	}
	return includes, nil
}

// LookupConfig - lookup compression config.
func LookupConfig(kvs config.KVS) (Config, error) {
	var err error
	cfg := Config{}
	if err = config.CheckValidKeys(config.CompressionSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

	compress := env.Get(EnvCompressState, kvs.Get(config.Enable))
	if compress == "" {
		compress = env.Get(EnvCompress, "")
	}

		}
		return nil, io.EOF
	}

	var kvs jstream.KVS
	if v.ValueType == jstream.Object {
		// This is a JSON object type (that preserves key
		// order)
		kvs = v.Value.(jstream.KVS)
	} else {
		// To be AWS S3 compatible Select for JSON needs to
		// output non-object JSON as single column value
		// i.e. a map with `_1` as key and value as the
		// non-object.
		kvs = jstream.KVS{jstream.KV{Key: "_1", Value: v.Value}}
	}

		return cfg, err
	}

	hstsIncludeSubdomains := env.Get(EnvBrowserHSTSIncludeSubdomains, kvs.GetWithDefault(browserHSTSIncludeSubdomains, DefaultKVS)) == config.EnableOn
	hstsPreload := env.Get(EnvBrowserHSTSPreload, kvs.Get(browserHSTSPreload)) == config.EnableOn

	hstsSeconds, err := strconv.Atoi(env.Get(EnvBrowserHSTSSeconds, kvs.GetWithDefault(browserHSTSSeconds, DefaultKVS)))

func LookupConfig(kvs config.KVS) (cfg Config, err error) {
	if err = config.CheckValidKeys(config.BatchSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

	cfg.ReplicationWorkersWait = 0
	cfg.KeyRotationWorkersWait = 0
	cfg.ExpirationWorkersWait = 0

	rduration, err := time.ParseDuration(env.Get(EnvReplicationWorkersWait, kvs.GetWithDefault(ReplicationWorkersWait, DefaultKVS)))

}

// LookupConfig - lookup config and override with valid environment settings if any.
func LookupConfig(kvs config.KVS) (cfg Config, err error) {
	if err = config.CheckValidKeys(config.HealSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

	bitrot := env.Get(EnvBitrot, kvs.GetWithDefault(Bitrot, DefaultKVS))
	if _, err = parseBitrotConfig(bitrot); err != nil {

		return 0, auth.ErrInvalidDuration
	}
	return dur, nil
}

// Lookup returns a new Config by merging the given K/V config
// system with environment variables.
func Lookup(kvs config.KVS) (Config, error) {
	if err := config.CheckValidKeys(config.IdentityTLSSubSys, kvs, DefaultKVS); err != nil {
		return Config{}, err
	}
	cfg := Config{}
	var err error
	v := env.Get(EnvIdentityTLSEnabled, "")
	if v == "" {
		return cfg, nil
	}

		return nil, errDataSource(errors.New("path not supported"))
	}
	switch rec := rawVal.(type) {
	case jstream.KVS:
		txedRec, _, err := jsonpathEval(e.selectAST.From.Table.PathExpr[1:], rec)
		if err != nil {
			return nil, err
		}

		var kvs jstream.KVS
		switch v := txedRec.(type) {
		case jstream.KVS:
			kvs = v

		case []interface{}:
			recs := make([]*Record, len(v))
			for i, val := range v {

func LookupConfig(kvs config.KVS) (cfg Config, err error) {
	cfg = Config{
		TransitionWorkers: 100,
		ExpirationWorkers: 100,
	}

	if err = config.CheckValidKeys(config.ILMSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

	tw, err := strconv.Atoi(env.Get(EnvILMTransitionWorkers, kvs.GetWithDefault(transitionWorkers, DefaultKVS)))
	if err != nil {
		return cfg, err