So, I should have the mic and recorder mounted side by side on the end of the pole?
No. Putting the recorder on the mic end of the pole puts it out of reach for operation, out of sight for visual reference, and means that you have to run a headphone cable down the pole.
The recorder needs to be within sight and within reach, in a waist pack or similar. The XLR cable runs from the mic, all the way down the pole, and to the inputs on the recorder (or, even better, into a mixer that will then feed the recorder). The boom operator will become your recordist, and will need to be responsible for operation and monitoring.