return userFields.slice().sort(function (a, b) {
var aIdx = indexFields.indexOf(a);
var bIdx = indexFields.indexOf(b);
if (aIdx === -1) {
aIdx = Number.MAX_VALUE;
}
if (bIdx === -1) {
bIdx = Number.MAX_VALUE;
}
return compare(aIdx, bIdx);
});
res.indexes.sort(function (left, right) {
return compare(left.name, right.name);
});