I have a elastic search index having columns a, b, c Need to find the elastic search query equivalent of select distinct c from tablename; ES version is 1.7.5
Elastic search equivalent query needed to find distinct values in a column in version 1.7.5
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You could use facets:
https://www.elastic.co/guide/en/elasticsearch/reference/1.7/search-facets.html
You should also really consider upgrading to a newer version.