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GET /some-index/_search { "size": 0, "aggs": { "my_buckets": { "composite": { "sources": [ { "shop": { "terms": { "field": "shop" } } }, { "product": { "terms": { "field": "product" } } }, { "date": { "date_histogram": { "field": "timestamp", "calendar_interval": "1d" } } } ] } } } }