desc, ok := m.descriptors[name]
	if !ok {
		panic(fmt.Sprintf("metric has no description: %s", name))
	}

	if len(labels)%2 != 0 {
		panic("labels must be a list of ordered key-value pairs")
	}

	validLabels := desc.getLabelSet()
	labelMap := make(map[string]string, len(labels)/2)
	for i := 0; i < len(labels); i += 2 {
		if _, ok := validLabels[labels[i]]; !ok {

				f, err := os.Open(file)
				if err != nil {
					return err
				}
				if st, err := f.Stat(); err == nil {
					sz = st.Size()
				}
				defer f.Close()
				r = f
			}
			if ra, ok := r.(io.ReaderAt); ok && strings.HasSuffix(file, ".zip") {
				zr, err := zip.NewReader(ra, sz)
				if err != nil {
					return err
				}
				for _, file := range zr.File {
					if file.FileInfo().IsDir() {
						continue

			if column.Desc {
				builder.WriteString(" DESC")
			}
		}
	}
}

// MergeClause merge order by clauses
func (orderBy OrderBy) MergeClause(clause *Clause) {
	if v, ok := clause.Expression.(OrderBy); ok {
		for i := len(orderBy.Columns) - 1; i >= 0; i-- {
			if orderBy.Columns[i].Reorder {
				orderBy.Columns = orderBy.Columns[i:]
				clause.Expression = orderBy
				return
			}
		}

			ignored: true,
		},
		{
			err:     errFaultyDisk,
			ignored: true,
		},
	}
	for i, testCase := range testCases {
		if ok := IsErrIgnored(testCase.err, append(baseIgnoredErrs, errIgnored)...); ok != testCase.ignored {
			t.Errorf("Test: %d, Expected %t, got %t", i+1, testCase.ignored, ok)
		}
	}
}

// Test queries()
func TestQueries(t *testing.T) {
	testCases := []struct {
		keys      []string

	gatherers := prometheus.Gatherers{
		prometheus.DefaultGatherer,
		registry,
	}

	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		tc, ok := r.Context().Value(mcontext.ContextTraceKey).(*mcontext.TraceCtxt)
		if ok {
			tc.FuncName = "handler.MetricsLegacy"
			tc.ResponseRecorder.LogErrBody = true
		}

		mfs, err := gatherers.Gather()
		if err != nil {
			if len(mfs) == 0 {

	if last > defaultLogBufferCount || last <= 0 {
		last = defaultLogBufferCount
	}

	lastN = make([]log.Info, last)
	sys.RLock()
	sys.logBuf.Do(func(p any) {
		if p != nil {
			lg, ok := p.(log.Info)
			if ok && lg.SendLog(node, logKind) {
				lastN[cnt%last] = lg
				cnt++
			}
		}
	})
	sys.RUnlock()
	// send last n console log messages in order filtered by node
	if cnt > 0 {

	if err == nil && j.Type == DeleteType && v < 2 {
		if val, ok := j.DeleteMarker.MetaSys[ReservedMetadataPrefixLower+ReplicationTimestamp]; ok {
			tm, err := time.Parse(time.RFC3339Nano, string(val))
			if err == nil {
				j.DeleteMarker.MetaSys[ReservedMetadataPrefixLower+ReplicationTimestamp] = []byte(tm.UTC().Format(time.RFC3339Nano))
			}
		}
		if val, ok := j.DeleteMarker.MetaSys[ReservedMetadataPrefixLower+ReplicaTimestamp]; ok {

				continue
			}
			if _, ok := object.UserMetadata["X-Amz-Server-Side-Encryption-Customer-Algorithm"]; ok {
				log.Println("SKIPPED: Objects encrypted with SSE-C do not have md5sum as ETag:", objFullPath(object))
				continue
			}
			if v, ok := object.UserMetadata["X-Amz-Server-Side-Encryption"]; ok && v == "aws:kms" {

		return
	}

	byHostName := globalMinioAddr
	if len(opts.hosts) > 0 {
		server := getLocalServerProperty(globalEndpoints, &http.Request{
			Host: globalLocalNodeName,
		}, false)
		if _, ok := opts.hosts[server.Endpoint]; ok {
			byHostName = server.Endpoint
		} else {
			return
		}
	}

	if strings.HasPrefix(byHostName, ":") && !strings.HasPrefix(globalLocalNodeName, ":") {
		byHostName = globalLocalNodeName
	}

				"SCHILY.xattr.key": "value",
			},
		},
		ok: true,
	}}

	for i, v := range vectors {
		got := new(Header)
		err := mergePAX(got, v.in)
		if v.ok && !reflect.DeepEqual(*got, *v.want) {
			t.Errorf("test %d, mergePAX(...):\ngot  %+v\nwant %+v", i, *got, *v.want)
		}
		if ok := err == nil; ok != v.ok {
			t.Errorf("test %d, mergePAX(...): got %v, want %v", i, ok, v.ok)
		}
	}
}