Details
-
Bug
-
Resolution: Done
-
Major - P3
-
None
-
3.3.2
-
OSX, 10GB RAM, 512GB SSD, 2.5GH dual core
-
ALL
-
Description
Someone brought in my notice that MongoDB is not selecting fast query plan. During a test found that a fully covered index query is many fold slower than one with default index on _id field.