Pagination with grouping in solr

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Pagination with grouping in solr

swap
Document structure of solr document is as mentioned below now i need to get
the document having event_name="product view" and group it by email so that
email is not duplicate.Now on listing the email how may paginate the unique
email.As the query return total number of document not the count of groups

"docs":[ { "id":"1", "email":"[hidden email]", "gender":"M",
"location":["yyy"], "created":123444, "event_name":"product viewed",
"event_property":"product", "event_value":"sun glassed",
"version":1617201602734587904, "location_str":["yyyy"] }, { "id":"4",
"email":"[hidden email]", "gender":"F", "location":["zzzz"],
"created":123447, "event_name":"Add To Cart", "event_property":"Name",
"event_value":"sun glasses", "version":1617202784870858752,
"location_str":["zzzz"] }, { "id":"5", "email":"[hidden email]",
"gender":"M", "location":["kkkkk"], "created":123464, "event_name":"Product
Clicked", "event_property":"Category", "event_value":"Contact Lens",
"version":1617202784871907328, "location_str":["lllll"] } ]



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