message: fix(Widget): fix Table dynamic column name queryVar undefined bug
diff: @@ -253,7 +253,7 @@ export class Table extends React.PureComponent<IChartProps, ITableStates> {
  const { queryVars } = this.props
  let titleText: string | React.ReactNode = expression
  if (field) {
  - titleText = getFieldAlias(field, queryVars) || titleText
  + titleText = getFieldAlias(field, queryVars || {}) || titleText
  if (field.desc) {
  titleText = (<Tooltip title={field.desc}>{titleText}</Tooltip>)
  }
  