"bufio"
	"bytes"
	"fmt"
	"io"
	"runtime"
	"sync"
	"unicode/utf8"

	csv "github.com/minio/csvparser"
	"github.com/minio/minio/internal/s3select/sql"
)

// Reader - CSV record reader for S3Select.
type Reader struct {
	args         *ReaderArgs
	readCloser   io.ReadCloser    // raw input
	buf          *bufio.Reader    // input to the splitter
	columnNames  []string         // names of columns

package etag

import (
	"context"
	"crypto/md5"
	"fmt"
	"hash"
	"io"
)

// Tagger is the interface that wraps the basic ETag method.
type Tagger interface {
	ETag() ETag
}

type wrapReader struct {
	io.Reader
	Tagger
}

var _ Tagger = wrapReader{} // compiler check

// ETag returns the ETag of the underlying Tagger.
func (r wrapReader) ETag() ETag {