TransactionTrace multip_txn = this.getMultiPartitionTransaction();
Procedure catalog_proc = multip_txn.getCatalogItem(catalogContext.database);
for (int i = 0; i < num_txns; i++) {
TransactionTrace clone = (TransactionTrace)multip_txn.clone();
clone.setTransactionId(i);
new_workload.addTransaction(catalog_proc, clone);
} // FOR
assertEquals(num_txns, new_workload.getTransactionCount());
// We now want to calculate the cost of this new workload
final SingleSitedCostModel orig_costModel = new SingleSitedCostModel(catalogContext);