r.csvRecord = r.csvRecord[:0]
	}
	for k := range r.nameIndexMap {
		delete(r.nameIndexMap, k)
	}
}

// Clone the record.
func (r *Record) Clone(dst sql.Record) sql.Record {
	other, ok := dst.(*Record)
	if !ok {
		other = &Record{}
	}
	if len(other.columnNames) > 0 {
		other.columnNames = other.columnNames[:0]
	}
	if len(other.csvRecord) > 0 {
		other.csvRecord = other.csvRecord[:0]
	}

}

// Reset the record.
func (r *Record) Reset() {
	r.object = simdjson.Object{}
}

// Clone the record and if possible use the destination provided.
func (r *Record) Clone(dst sql.Record) sql.Record {
	other, ok := dst.(*Record)
	if !ok {
		other = &Record{}
	}
	other.object = r.object
	return other
}

// CloneTo clones the record to a json Record.

	QuoteEscape    rune
	AlwaysQuote    bool
}

// Record - is a type containing columns and their values.
type Record interface {
	Get(name string) (*Value, error)

	// Set a value.
	// Can return a different record type.
	Set(name string, value *Value) (Record, error)
	WriteCSV(writer io.Writer, opts WriteCSVOpts) error
	WriteJSON(writer io.Writer) error

	// Clone the record and if possible use the destination provided.

}

// Reset the record.
func (r *Record) Reset() {
	if len(r.KVS) > 0 {
		r.KVS = r.KVS[:0]
	}
}

// Clone the record and if possible use the destination provided.
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
}

		t.Run(file.Name(), func(t *testing.T) {
			f, err := os.Open(filepath.Join("testdata", file.Name()))
			if err != nil {
				t.Fatal(err)
			}
			r := NewReader(f, &ReaderArgs{})
			var record sql.Record
			for {
				record, err = r.Read(record)
				if err != nil {
					break
				}
			}
			r.Close()
			if err != io.EOF {
				t.Fatalf("Reading failed with %s, %s", err, file.Name())
			}
		})

	"github.com/minio/pkg/v2/env"
	"github.com/minio/simdjson-go"
	"github.com/pierrec/lz4"
)

type recordReader interface {
	// Read a record.
	// dst is optional but will be used if valid.
	Read(dst sql.Record) (sql.Record, error)
	Close() error
}

const (
	csvFormat     = "csv"
	jsonFormat    = "json"
	parquetFormat = "parquet"
)

	fr, err := parquetgo.NewFileReader(rsc)
	if err != nil {
		return nil, errParquetParsingError(err)
	}

	return &Reader{Closer: rsc, r: fr}, nil
}

func (pr *Reader) Read(dst sql.Record) (rec sql.Record, rerr error) {
	nextRow, err := pr.r.NextRow()
	if err != nil {
		if err == io.EOF {
			return nil, err
		}
		return nil, errParquetParsingError(err)
	}

	kvs := jstream.KVS{}

// newRecordsMessage - creates new Records Message which can contain a single record, partial records,
// or multiple records. Depending on the size of the result, a response can contain one or more of these messages.
//
// Header specification
// Records messages contain three headers, as follows:
// https://docs.aws.amazon.com/AmazonS3/latest/API/images/s3select-frame-diagram-record.png
//
// Payload specification

	dst   chan [][]string // result of block decode
	err   error           // any error encountered will be set here
}

// Read - reads single record.
// Once Read is called the previous record should no longer be referenced.
func (r *Reader) Read(dst sql.Record) (sql.Record, error) {
	// If we have have any records left, return these before any error.
	for len(r.current) <= r.recordsRead {
		if r.err != nil {
			return nil, r.err
		}

	}
	defer r.Close()
	b.ReportAllocs()
	b.ResetTimer()
	b.SetBytes(int64(len(f)))
	var record sql.Record
	for i := 0; i < b.N; i++ {
		r, err = NewReader(io.NopCloser(bytes.NewBuffer(f)), &args)
		if err != nil {
			b.Fatalf("Reading init failed with %s", err)
		}
		for err == nil {
			record, err = r.Read(record)
			if err != nil && err != io.EOF {
				b.Fatalf("Reading failed with %s", err)
			}
		}