1 files changed, 21 insertions, 0 deletions
diff --git a/jstests/indext.js b/jstests/indext.js
new file mode 100644
index 0000000..e418dc2
--- /dev/null
+++ b/jstests/indext.js
@@ -0,0 +1,21 @@
+// Sparse indexes with arrays SERVER-3216
+
+t = db.jstests_indext;
+t.drop();
+
+t.ensureIndex( {'a.b':1}, {sparse:true} );
+t.save( {a:[]} );
+t.save( {a:1} );
+assert.eq( 0, t.find().hint( {'a.b':1} ).itcount() );
+assert.eq( 0, t.find().hint( {'a.b':1} ).explain().nscanned );
+
+t.ensureIndex( {'a.b':1,'a.c':1}, {sparse:true} );
+t.save( {a:[]} );
+t.save( {a:1} );
+assert.eq( 0, t.find().hint( {'a.b':1,'a.c':1} ).itcount() );
+assert.eq( 0, t.find().hint( {'a.b':1,'a.c':1} ).explain().nscanned );
+
+t.save( {a:[{b:1}]} );
+t.save( {a:1} );
+assert.eq( 1, t.find().hint( {'a.b':1,'a.c':1} ).itcount() );
+assert.eq( 1, t.find().hint( {'a.b':1,'a.c':1} ).explain().nscanned );