It would be better if you give us an example. On Fri, 14 Feb 2020 at 17:20, Vadim Ivanov <vadim.iva...@intourist.ru.invalid> wrote:
> Hello guys! > I need an advise. My task is to delete some documents in collection. > Del algorithm is following: > Group docs by field1 with sort by field2 and delete every 3 and following > occurrences in every group. > Unfortunately I didn't find easy way to do so. > Closest approach was to use group.offset = 2, but result set is polluted > with empty groups with no documents (they have less then 3 docs in group). > May be I'm missing smth and there is way not to receive empty groups in > results? > Next approach was to use facet first with facet.mincount=3, then find docs > ids by every facet result and then delete docs by id. > That way seems to me too complicated for the task. > What's the best use case for the task? > -- -- Regards, *Paras Lehana* [65871] Development Engineer, *Auto-Suggest*, IndiaMART InterMESH Ltd, 11th Floor, Tower 2, Assotech Business Cresterra, Plot No. 22, Sector 135, Noida, Uttar Pradesh, India 201305 Mob.: +91-9560911996 Work: 0120-4056700 | Extn: *11096* -- * * <https://www.facebook.com/IndiaMART/videos/578196442936091/>
