[SERVER-3163] mongoS should split $in queries to shards according to ranges Created: 27/May/11  Updated: 10/Dec/14  Resolved: 06/Mar/14

Status: Closed
Project: Core Server
Component/s: Performance, Sharding
Affects Version/s: None
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: Antoine Girbal Assignee: Unassigned
Resolution: Duplicate Votes: 7
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Duplicate
duplicates SERVER-1007 rewrite $in queries on shard key to o... Backlog
Participants:

 Description   

some users put thousands of items in $in queries.
MongoS just sends the entire $in array to all shards.
Instead, if the field is the shard key, filter only relevant values to each shard.


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