test7:PRIMARY> show collections
test7:PRIMARY> db.a.insert({a:1})
WriteResult({ "nInserted" : 1 })
test7:PRIMARY> show collections
test7:PRIMARY> db.a.find()
{ "_id" : ObjectId("545b6bba4cabb8d975e9e665"), "a" : 1 }
{ "_id" : ObjectId("545b6bba4cabb8d975e9e665"), "a" : 1 }
Type "it" for more
test7:PRIMARY> show collections
test7:PRIMARY> db.adminCommand("listCollections")
{ "collections" : [ ], "ok" : 1 }
test7:PRIMARY> use local
switched to db local
test7:PRIMARY> db.adminCommand("listCollections")
{ "collections" : [ ], "ok" : 1 }
test7:PRIMARY> show collections
test7:PRIMARY> db.oplog.rs.stats()
{
"ns" : "local.oplog.rs",
"count" : 2097152,
"size" : 201326592,
"avgObjSize" : 96,
"storageSize" : 89,
"nindexes" : 0,
"capped" : true,
"max" : -1,
"maxSize" : 201326592,
"wiredtiger" : {
"uri" : "statistics:table:collection-6-2589753951712478342",
"LSM" : {
...
Bug
Blocker - P1
SERVER-16225 Emulate query results for system.namespaces/indexes