Hello, i have data stored in elasticsearch with a field called transaction_date mapped as a date ,this is its structure in the csv file 2/24/2017;14:15:43 and this how it is viewed in kibana April 18th 2016, 15:15:44.000 .In fact , i want to perform calculations using aggregatiuons with scripted f…

Extract the year from a date

dadoonet (David Pilato) July 31, 2017, 10:25am 5

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May be your question is more for Kibana? So may be move it to kibana instead?
I believe you can do something similar with time series visual builder.

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