Please help to filter of group.limit

Dear everyone. My problem have 2 query 1) Get top 1 of each group (group.limit = 1 AND group.sort = date desc & group.field=ABC) 2) Filter to get document of each group match condition. If document don't match condition then remove of list result. Help me. Thanks you. Hải

How use gorup and facet ?

Dear Solr expert. I have 2 problems need your help. 1) I have to group list with group.limit=1&group.main=true&group.sort=Date desc (many group and each group has 1 element is newest). Then from list group (each group has 1 element), I want to filter in order to remove items (in groups) not matches