void gqbGridJoinTable::removeJoins(gqbQueryObject *obj)
{
if (!obj)
return;
if (obj->getHaveJoins())
{
gqbIteratorBase *itrJoins = obj->createJoinsIterator();
if (itrJoins)
{
while (itrJoins->HasNext())
{
gqbQueryJoin *tmp = (gqbQueryJoin *)itrJoins->Next();
removeJoin(tmp);
}
}
}
if (obj->getHaveRegJoins())
{
gqbIteratorBase *itrRegJoins = obj->createRegJoinsIterator();
if (itrRegJoins)
{
while (itrRegJoins->HasNext())
{
gqbQueryJoin *tmp = (gqbQueryJoin *)itrRegJoins->Next();
removeJoin(tmp);
}
}
}
}
void optims(SRDAGGraph *topDag, Stack* stack){
bool res;
do{
res = false;
res = res || reduceJoinJoin(topDag);
res = res || reduceForkFork(topDag);
res = res || reduceBrBr(topDag);
res = res || reduceJoinFork(topDag);
res = res || removeBr(topDag);
res = res || removeFork(topDag);
res = res || removeJoin(topDag);
res = res || reduceInitEnd(topDag);
}while(res);
}
