title: Filtering specific column in Angular Material Table with filtering in angular?
body: <p>I am using  <a href="https://run.stackblitz.com/api/angular/v1?file=app%2Ftable-filtering-example.ts" rel="noreferrer">mat-table</a>. It has a filter which works fine.</p>
  
  <p>Filter happened against this below data (All columns)</p>
  
  <pre><code>const ELEMENT_DATA: Element[] = [
    {position: 14598, name: 'Hydrogen', weight: 1.0079, symbol: 'H'},
    {position: 24220, name: 'Helium', weight: 4.0026, symbol: 'He'},
    {position: 39635, name: 'Lithium', weight: 6.941, symbol: 'Li'},
    {position: 42027, name: 'Beryllium', weight: 9.0122, symbol: 'Be'},
    {position: 53216, name: 'Boron', weight: 10.811, symbol: 'B'},
    {position: 60987, name: 'Carbon', weight: 12.0107, symbol: 'C'},
    {position: 70976, name: 'Nitrogen', weight: 14.0067, symbol: 'N'},
    {position: 81297, name: 'Oxygen', weight: 15.9994, symbol: 'O'},
    {position: 90975, name: 'Fluorine', weight: 18.9984, symbol: 'F'},
    {position: 18879, name: 'Neon', weight: 20.1797, symbol: 'Ne'},
    {position: 11209, name: 'Sodium', weight: 22.9897, symbol: 'Na'}
  
  ];
  </code></pre>
  
  <p>But Now I am trying to change the filter because I want is filter just for <code>"position", "name", "symbol"</code> column. I have gone through this example but <a href="https://stackoverflow.com/questions/48276404/filtering-specific-column-in-angular-material-table-in-angular-5">Filtering specific column in Angular Material table in angular 5</a>.</p>
  
  <p>I did not understand please help me on this</p>
  
  <p><a href="https://stackblitz.com/edit/angular-z17v3j-o8y43u?file=app%2Ftable-filtering-example.ts" rel="noreferrer">StackBlitz Code</a></p>