path = tf
		}
		var rc *ReadCloser
		rc, err = OpenReader(path)
		if err == nil {
			defer rc.Close()
			z = &rc.Reader
		}
		var err2 error
		raw, err2 = os.ReadFile(path)
		if err2 != nil {
			t.Errorf("ReadFile(%s) error=%v", path, err2)
			return
		}
	}
	if err != zt.Error {
		t.Errorf("error=%v, want %v", err, zt.Error)
		return
	}

	// bail if file is not zip

	var ss []string
	for _, p := range []string{
		"testdata/gnu.tar",
		"testdata/ustar-file-reg.tar",
		"testdata/pax-path-hdr.tar",
		"testdata/sparse-formats.tar",
	} {
		buf, err := os.ReadFile(p)
		if err != nil {
			t.Fatalf("unexpected error: %v", err)
		}
		ss = append(ss, string(buf))
	}

	data1, data2, pax, sparse := ss[0], ss[1], ss[2], ss[3]
	data2 += strings.Repeat("\x00", 10*512)

	}
}

func BenchmarkReader(b *testing.B) {
	files, err := os.ReadDir("testdata")
	if err != nil {
		b.Fatal(err)
	}
	for _, file := range files {
		b.Run(file.Name(), func(b *testing.B) {
			f, err := os.ReadFile(filepath.Join("testdata", file.Name()))
			if err != nil {
				b.Fatal(err)
			}
			b.SetBytes(int64(len(f)))
			b.ReportAllocs()
			b.ResetTimer()
			var record sql.Record
			for i := 0; i < b.N; i++ {