1 files changed, 20 insertions, 0 deletions
diff --git a/jstests/indexOtherNamespace.js b/jstests/indexOtherNamespace.js
new file mode 100644
index 00000000000..9410e281347
--- /dev/null
+++ b/jstests/indexOtherNamespace.js
@@ -0,0 +1,20 @@
+// SERVER-8814: Test that only the system.indexes namespace can be used to build indexes.
+
+function assertGLENotOK(status) {
+    assert(status.ok && status.err !== null,
+           "Expected not-OK status object; found " + tojson(status));
+}
+
+db = db.getSiblingDB("indexOtherNS");
+db.dropDatabase();
+
+db.foo.insert({a:1})
+assert.eq(1, db.system.indexes.count());
+assert.eq("BasicCursor", db.foo.find({a:1}).explain().cursor);
+
+db.randomNS.system.indexes.insert({ns:"indexOtherNS.foo", key:{a:1}, name:"a_1"});
+assertGLENotOK(db.getLastErrorObj());
+// Assert that index didn't actually get built
+assert.eq(1, db.system.indexes.count());
+assert.eq(null, db.system.namespaces.findOne({name : "indexOtherNS.foo.$a_1"}));
+assert.eq("BasicCursor", db.foo.find({a:1}).explain().cursor);