@Override
    public List<NodeInfo> getJobClients() {
        return new SelectSql(getSqlTemplate())
                .select()
                .columns("DISTINCT identity AS identity", "node_group")
                .from()
                .table(getTableName())
                .list(RshHandler.NODE_INFO_LIST_RSH);
    }
@author Robert HG (254963746@qq.com) on 3/12/16.
lts-admin/src/main/java/com/github/ltsopensource/admin/access/mysql/MysqlBackendJobClientMAccess.java