HTable table = new HTable(conf, userTableName);
rangePutForIdx2WithDouble(table);
FilterList masterFilter = new FilterList(Operator.MUST_PASS_ALL);
SingleColumnValueFilter scvf =
new SingleColumnValueFilter("cf1".getBytes(), "c1".getBytes(), CompareOp.GREATER_OR_EQUAL,
new DoubleComparator(Bytes.toBytes(-5.3d)));
masterFilter.addFilter(scvf);
Scan scan = new Scan();
scan.setFilter(masterFilter);
ResultScanner scanner = table.getScanner(scan);
List<Result> testRes = new ArrayList<Result>();