I have an index populated with people and their birth dates. I want to
create a histogram of their current ages. Is this possible?
So I have tried using a date histogram aggregation with year interval which
gives me what years the users where born. This is a good start. To get
exact ages I thought I could use the pre/post offset. Is this correct?
I use the java client and calculate the number of milliseconds that have
passes since the beginning of the year and pass that into the pre/post
offset but I always get a null response when doing this. The entire request
fails. If I remove the offsets the request passes again. Have I
misunderstood something? Is it possible to use the date histogram to
achieve what I want?
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