N/search Module
search.Column
Object Description: Encapsulates a single search column in a search.Search. Use the methods and properties available to the Column object to get or set Column properties. You create a search column object with search.createColumn(options) and add it to a search.Search object that you create with search.create(options) or load with search.load(options). You can pass a Column object as a parameter to the Result.getValue(column) or Result.getText(column) methods. In addition, search.ResultSet contains an array of Column objects returned in the results of a search. For a complete list of this object’s methods and properties, see Column Object Members.
Supported Script Types: All script types For more information, see SuiteScript 2.0 Script Types.
Module: N/search Module
Since: 2015.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=search.Column

// Code Example 1

//Add additional code

//...

search.create({

    type: search.Type.TRANSACTION,

    columns: [

        'trandate',

        'amount',

        'entity',

        'entity.firstname',

        'entity.email',

         search.createColumn({

             name: 'formulatext',

             formula: "{lastname}||', '||{firstname}"

             })

         ],



        // When the search is executed, the corresponding column in the result will then contain a value in the form: Last Name, First Name

//...

//Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4345767216.html