Function restoreNode

backend/plugin/schema/tidb/walk_through.go:1390–1397

(node tidbast.Node, flag format.RestoreFlags)

}

func restoreNode(node tidbast.Node, flag format.RestoreFlags) (string, error) {
	var buffer strings.Builder
	ctx := format.NewRestoreCtx(flag, &buffer)
	if err := node.Restore(ctx); err != nil {
		return "", errors.Wrapf(err, "failed to deparse node")
	}
	return buffer.String(), nil
}

func getIndexType(option *tidbast.IndexOption) string {
	if option != nil {