// IThorDataLink
virtual void start()
{
ActivityTimer s(totalCycles, timeActivities, NULL);
input = inputs.item(0);
startInput(input);
dataLinkStart("SELFJOIN", container.queryId());
bool hintparallelmatch = container.queryXGMML().getPropInt("hint[@name=\"parallel_match\"]")!=0;
bool hintunsortedoutput = container.queryXGMML().getPropInt("hint[@name=\"unsorted_output\"]")!=0;
if (helper->getJoinFlags()&JFlimitedprefixjoin) {
CriticalBlock b(joinHelperCrit);
// use std join helper (less efficient but implements limited prefix)
joinhelper.setown(createJoinHelper(helper,"SELFJOIN", container.queryId(), queryRowAllocator(),hintparallelmatch,hintunsortedoutput));
}
else {
CriticalBlock b(joinHelperCrit);
joinhelper.setown(createSelfJoinHelper(helper,"SELFJOIN", container.queryId(), queryRowAllocator(),hintparallelmatch,hintunsortedoutput));
}
strm.setown(isLightweight? doLightweightSelfJoin() : (isLocal ? doLocalSelfJoin() : doGlobalSelfJoin()));
assertex(strm);
joinhelper->init(strm, NULL, ::queryRowAllocator(inputs.item(0)), ::queryRowAllocator(inputs.item(0)), ::queryRowMetaData(inputs.item(0)), &abortSoon, this);
}
// IThorDataLink
virtual void start()
{
ActivityTimer s(totalCycles, timeActivities, NULL);
input = inputs.item(0);
startInput(input);
dataLinkStart();
bool hintunsortedoutput = getOptBool(THOROPT_UNSORTED_OUTPUT, JFreorderable & helper->getJoinFlags());
bool hintparallelmatch = getOptBool(THOROPT_PARALLEL_MATCH, hintunsortedoutput); // i.e. unsorted, implies use parallel by default, otherwise no point
if (helper->getJoinFlags()&JFlimitedprefixjoin) {
CriticalBlock b(joinHelperCrit);
// use std join helper (less efficient but implements limited prefix)
joinhelper.setown(createJoinHelper(*this, helper, this, hintparallelmatch, hintunsortedoutput));
}
else
{
CriticalBlock b(joinHelperCrit);
joinhelper.setown(createSelfJoinHelper(*this, helper, this, hintparallelmatch, hintunsortedoutput));
}
strm.setown(isLightweight? doLightweightSelfJoin() : (isLocal ? doLocalSelfJoin() : doGlobalSelfJoin()));
assertex(strm);
joinhelper->init(strm, NULL, ::queryRowAllocator(inputs.item(0)), ::queryRowAllocator(inputs.item(0)), ::queryRowMetaData(inputs.item(0)), &abortSoon);
}
