MarkLogic 10 Product Documentation

ModifyPlan.prototype.union

ModifyPlan.prototype.union(
   rightPlan as String
) as ModifyPlan

Summary

This method yields all of the rows from the input row sets. Columns that are present only in some input row sets effectively have a null value in the rows from the other row sets.

This method is often followed by the prototype.whereDistinct modifier.

Usage Notes

union is a method of the following classes:

• AccessPlan
• ModifyPlan

Example

const op = require('/MarkLogic/optic');

const employees = op.fromView('main', 'employees');
const expenses = op.fromView('main', 'expenses');

const Plan =
    employees.union(expenses)
     .whereDistinct()
     .orderBy([employees.col('EmployeeID')])
Plan.result();