StageTable / StageRow

table = db::sqlStream(sql="select * from whatever", connKey='hopper')

  using(staging = db::staging(connKey="hopper", table=table, destinationTable="staging.whatever")) {
     foreach(row in table) {
        if(isValid)
           db::stageRow(staging=staging, row=row)
     }
  }

   // staging table ready