How to export only selected columns in Using the Export Capability in Headless Mode

Summary:

How to export only selected columns in Using the Export Capability in Headless Mode

Content (required):

Hi,

I am using export in progmatic way which is working perfectly fine. But I am not able to control the columns I want to export. As of now all the columns are getting exported. I do not want to change the ORDS query as it is being user at other places also.

Version (include the version you are using, if applicable):

2210

Code Snippet (add any code snippets that support your topic, if applicable):

PageModule.prototype.doExport = function(dataSource, workingAreaId){
   let columnsArray= [{"field":"emp_name","headerText":"Emp Name"},
                      {"field":"id","headerText":"Emp Id"}
                     ] ;
    var tempElement = document.getElementById(workingAreaId);
   exporter.export(dataSource, tempElement,true,columnsArray,"Emp.csv");
  };

/* It still exports all the columns of Emp ADP */