Question : compound index mongodb
Answered by : weary-sloth
db.collectionName.createIndex({field:value, field:value})
The order of fields listed in a compound index has significance.
For instance, if a compound index consists of { userid: 1, score: -1 },
the index sorts first by userid and then, within each userid value, sorts by score.
Source : | Last Update : Sat, 09 Jan 21