I have a reasonable need, but I can't find how to deal with it on es
official docs and books, is anyone know, please teach it to me! thank you!
I have a large set of docs, which hold a lot of fields, such as a user info
page. If I want analysis the gender distribution of all of users whose
live in "city"="1000"(1000 is a city code), I don't need other field except
"city" and "gender", How can I exclude these meaningless field before they
are returned when I search or scan. Because there are a lots of doc, If
transmit the entire doc will wast many time and bandwidth, and I have to
trim the additional information in myself program. so, is there a method
can deal with problem for me? thank you.
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