Merge pull request #18084 from h2oloopan/patch-1

Add rowSpan to table columns

types/material-ui/index.d.ts

@@ -1702,6 +1702,7 @@ declare namespace __MaterialUI {
 
             // useful attributes passed to <td/>
             colSpan?: number;
+            rowSpan?: number;
         }
         export class TableRowColumn extends React.Component<TableRowColumnProps> {
         }
@@ -1732,6 +1733,7 @@ declare namespace __MaterialUI {
 
             // useful attributes passed to <th/>
             colSpan?: number;
+            rowSpan?: number;
         }
         export class TableHeaderColumn extends React.Component<TableHeaderColumnProps> {
         }