e := d.Cache[id]
		if len(e.Children) > 0 {
			e = d.flatten(e)
		}
		m[id] = e
	}
	return m
}

// flatten all children of the root into the root element and return it.
func (d *dataUsageCache) flatten(root dataUsageEntry) dataUsageEntry {
	for id := range root.Children {
		e := d.Cache[id]
		if len(e.Children) > 0 {
			e = d.flatten(e)
		}
		root.merge(e)
	}
	root.Children = nil

	MemberNumber string `gorm:"index:idx_id,priority:1"`
	Name7        string `gorm:"index:type"`
	Name8        string `gorm:"index:,length:10;index:,collate:utf8"`

	// Composite Index: Flattened structure.
	Data0A string `gorm:"index:,composite:comp_id0"`
	Data0B string `gorm:"index:,composite:comp_id0"`

	// Composite Index: Nested structure.
	Data1A string `gorm:"index:,composite:comp_id1"`
	CompIdxLevel1C

		path       string
		isNil      bool
		size, objs int
		flatten    bool
		oSizes     sizeHistogram
	}{
		{
			path:    "/",
			size:    363515,
			flatten: true,
			objs:    14,
			oSizes:  sizeHistogram{0: 7, 1: 5, 2: 2},
		},
		{
			path:    "/dir1",
			size:    342210,
			objs:    7,
			flatten: false,
			oSizes:  sizeHistogram{0: 2, 1: 3, 2: 2},
		},
		{

		// Lookup remainder of path in each array element and
		// make result array.
		var result []interface{}
		for _, a := range arr {
			rval, flatten, err := jsonpathEval(p[1:], a)
			if err != nil {
				return nil, false, err
			}

			if flatten {
				// Flatten if array.
				if arr, ok := rval.([]interface{}); ok {
					result = append(result, arr...)
					continue
				}
			}

					_, _ = fmt.Fprintf(c.OutOrStdout(), "%v.%v:\n%v\n", podName, podNamespace, resp)
				} else {
					errs = multierror.Append(fmt.Errorf("%v.%v: %v", podName, podNamespace, err))
				}
			}
			if err := multierror.Flatten(errs.ErrorOrNil()); err != nil {
				return err
			}
			return nil
		},
		ValidArgsFunction: completion.ValidPodsNameArgs(ctx),
	}

	levelListString := fmt.Sprintf("[%s, %s, %s, %s, %s, %s, %s]",

					// updates-collector goroutine still
					// holds a reference to this.
					wg.Wait()
					continue
				}

				wg.Wait()
				// Flatten for upstream, but save full state.
				var root dataUsageEntry
				if r := cache.root(); r != nil {
					root = cache.flatten(*r)
					if root.ReplicationStats.empty() {
						root.ReplicationStats = nil
					}
				}
				select {
				case <-ctx.Done():
					return

				} else {
					_, _ = fmt.Fprintf(c.OutOrStdout(), "%v.%v:\n%v", podName, podNamespace, resp)
				}
			}
			if err := multierror.Flatten(errs.ErrorOrNil()); err != nil {
				return err
			}
			return nil
		},
		ValidArgsFunction: completion.ValidPodsNameArgs(ctx),
	}

	levelListString := fmt.Sprintf("[%s, %s, %s, %s, %s, %s, %s]",