this is not sharded collection, it only had one shard. I want to use
collapse to replace current group query, but the result is not same, I feel
there are some function issue in collapse plugin
2017-09-07 14:59 GMT-07:00 Erick Erickson :
> Is this a sharded collection? group.ngroups isn't support
Is this a sharded collection? group.ngroups isn't supported (see the
docs, "group.ngroups and group.facet require that all documents in
each group must be co-located on the same shard") in sharded
situations so it's not surprising that the results differ.
Best,
Erick
On Thu, Sep 7, 2017 at 10:35
