ServiceNow check duplicates on 2 columns using GlideAggregate

var sQuery = 'sys_created_onONThis month@javascript:gs.beginningOfThisMonth()@javascript:gs.endOfThisMonth()';

checkDupl('question_answer', 'question', 'table_sys_id', sQuery);

//checkDupl('question_answer', 'question', 'table_name', sQuery);

function checkDupl(table, fieldParam1, fieldParam2, customQuery) {

  var ga = new GlideAggregate(table);

  ga.addAggregate('COUNT', fieldParam1);

  if (customQuery) {

    ga.addQuery(customQuery);

  }

  ga.groupBy(fieldParam1);

  ga.addHaving('COUNT', '>', 1);

  ga.query();

  var dupls = [];

  

  while (ga.next()) {

    if (!gs.nil(ga.getDisplayValue(fieldParam1))) {

      //dupls.push('checking question:::: ' + ga.getDisplayValue(fieldParam1));

      var ga2 = new GlideAggregate(table);

      ga2.addAggregate('COUNT', fieldParam2);

      if (customQuery) {

        ga2.addQuery(customQuery);

      }

      ga2.addQuery('question', ga.getValue(fieldParam1));

      ga2.groupBy(fieldParam2);

      ga2.addHaving('COUNT', '>', 1);

      ga2.query();

      while (ga2.next()) {

        dupls.push("The following records are duplicate on " + fieldParam2);

        var DuplLine2 = ga2.getValue(fieldParam2) + " " + ga2.getAggregate('COUNT', fieldParam2) + " => " + ga.getDisplayValue(fieldParam1);

        dupls.push(DuplLine2);

      }

    }

    //gs.log(dupls,'duplWidget_arr');

  }

  return dupls;

}