IRowStream * doLocalSelfJoin()
{
#if THOR_TRACE_LEVEL > 5
ActPrintLog("SELFJOIN: Performing local self-join");
#endif
Owned<IThorRowLoader> iLoader = createThorRowLoader(*this, ::queryRowInterfaces(input), compare, isUnstable() ? stableSort_none : stableSort_earlyAlloc, rc_mixed, SPILL_PRIORITY_SELFJOIN);
Owned<IRowStream> rs = iLoader->load(input, abortSoon);
stopInput(input);
input = NULL;
return rs.getClear();
}
IRowStream * doLocalSelfJoin()
{
#if THOR_TRACE_LEVEL > 5
ActPrintLog("SELFJOIN: Performing local self-join");
#endif
Owned<IThorRowLoader> iLoader = createThorRowLoader(*this, ::queryRowInterfaces(input), compare, isUnstable() ? stableSort_none : stableSort_earlyAlloc, rc_mixed, SPILL_PRIORITY_SELFJOIN);
Owned<IRowStream> rs = iLoader->load(inputStream, abortSoon);
mergeStats(spillStats, iLoader); // Not sure of the best policy if rs spills later on.
PARENT::stop();
return rs.getClear();
}
void start()
{
ActivityTimer s(totalCycles, timeActivities, NULL);
dataLinkStart();
input = inputs.item(0);
unsigned spillPriority = container.queryGrouped() ? SPILL_PRIORITY_GROUPSORT : SPILL_PRIORITY_LARGESORT;
iLoader.setown(createThorRowLoader(*this, queryRowInterfaces(input), iCompare, unstable ? stableSort_none : stableSort_earlyAlloc, rc_mixed, spillPriority));
startInput(input);
eoi = false;
if (container.queryGrouped())
out.setown(iLoader->loadGroup(input, abortSoon));
else
out.setown(iLoader->load(input, abortSoon));
if (0 == iLoader->numRows())
eoi = true;
}