1 files changed, 21 insertions, 0 deletions
diff --git a/jstests/ne2.js b/jstests/ne2.js
new file mode 100644
index 0000000..89e99aa
--- /dev/null
+++ b/jstests/ne2.js
@@ -0,0 +1,21 @@
+// check that we don't scan $ne values
+
+t = db.jstests_ne2;
+t.drop();
+t.ensureIndex( {a:1} );
+
+t.save( { a:-0.5 } );
+t.save( { a:0 } );
+t.save( { a:0 } );
+t.save( { a:0.5 } );
+
+e = t.find( { a: { $ne: 0 } } ).explain( true );
+assert.eq( "BtreeCursor a_1 multi", e.cursor );
+assert.eq( 0, e.indexBounds.a[ 0 ][ 1 ] );
+assert.eq( 0, e.indexBounds.a[ 1 ][ 0 ] );
+assert.eq( 3, e.nscanned );
+
+e = t.find( { a: { $gt: -1, $lt: 1, $ne: 0 } } ).explain();
+assert.eq( "BtreeCursor a_1 multi", e.cursor );
+assert.eq( { a: [ [ -1, 0 ], [ 0, 1 ] ] }, e.indexBounds );
+assert.eq( 3, e.nscanned );