I have a field with MSISDNs. I need to do aggs by Substring of First 4 digits of MSISDN.
How can this be implemented in best optimised way. My Data is huge as 100GB/hr.
Can this be done by Scripted field or Inline Scripting? I'm not able to achieve this.
My Elasticsearch version is 5. We have recently moved our live instances from Elasticsearch 2.4 to 5.
Sorry if repeated.. Thanks in Advance.