// Multikey geo index tests with parallel arrays. t = db.jstests_geo_multikey1; t.drop(); locArr = []; arr = []; for (i = 0; i < 10; ++i) { locArr.push([i, i + 1]); arr.push(i); } t.save({loc: locArr, a: arr, b: arr, c: arr}); // Parallel arrays are allowed for geo indexes. assert.commandWorked(t.ensureIndex({loc: '2d', a: 1, b: 1, c: 1})); // Parallel arrays are not allowed for normal indexes. assert.commandFailed(t.ensureIndex({loc: 1, a: 1, b: 1, c: 1}));