ElasticSearch + field Alias

Hello All,

I would like to apply Alias on field

Below is elastic search mapping document script

"logruntime": {
"type": "date",
"format": "epoch_millis||MM/dd/yyyy HH:mm"

So it will create column into Kibana and name of column will be "logruntime", But what if i would name of column "Server Log Runtime" into kibana

Do i need to make changes into Elastic Search mapping document ?

Thanks for your help in Advance

There is no such thing as a field alias in ES.