Minor - P4 Cursor is null for hashed index for $or query:
> t.runCommand( "distinct" , { key : "a" , query : {$or: [{a:3}, {a:5}] }} );
{
"values" : [
3,
5
],
"stats" : {
"n" : 20000,
"nscanned" : 100000,
"nscannedObjects" : 100000,
"timems" : 73,
"cursor" : "BasicCursor"
},
"ok" : 1
}
> t.ensureIndex({a: "hashed"});
> t.runCommand( "distinct" , { key : "a" , query : {$or: [{a:3}, {a:5}] }} );
{
"values" : [
3,
5
],
"stats" : {
"n" : 20000,
"nscanned" : 20000,
"nscannedObjects" : 20000,
"timems" : 55,
"cursor" : ""
},
"ok" : 1
}