void run() {
buildCollection();
WorkingSetID id;
setupFromQuery(BSON( "ts" << BSON( "$gte" << tsGte() )));
// ensure that we go into extent hopping mode immediately
_stage->setBackwardsScanTime(0);
// collection scan needs to initialize itself
ASSERT_EQUALS(_stage->work(&id), PlanStage::NEED_TIME);
// collection scan finds the first diskloc in
// the backwards scan
ASSERT_EQUALS(_stage->work(&id), PlanStage::NEED_TIME);
ASSERT(_stage->isBackwardsScanning());
// hop back extent by extent
for (int i = 0; i < numHops(); i++) {
ASSERT_EQUALS(_stage->work(&id), PlanStage::NEED_TIME);
ASSERT(_stage->isExtentHopping());
}
// find the right loc without hopping again
ASSERT_EQUALS(_stage->work(&id), finalState());
int startDocId = tsGte() - 1;
if (startDocId >= 0) {
assertWorkingSetMemberHasId(id, startDocId);
}
}
void run() {
for(int i = 0; i < 10; ++i) {
client()->insert(ns(), BSON( "_id" << i << "ts" << i ));
}
setupFromQuery(BSON( "ts" << BSON( "$gte" << 10 )));
WorkingSetID id = WorkingSet::INVALID_ID;
// collection scan needs to be initialized
ASSERT_EQUALS(_stage->work(&id), PlanStage::NEED_TIME);
// finds starting record
ASSERT_EQUALS(_stage->work(&id), PlanStage::ADVANCED);
ASSERT(_stage->isBackwardsScanning());
assertWorkingSetMemberHasId(id, 9);
}
void run() {
for(int i = 0; i < 10; ++i) {
client()->insert(ns(), BSON( "_id" << i << "ts" << i));
}
setupFromQuery(BSON( "ts" << BSON( "$gte" << 1 )));
WorkingSetID id = WorkingSet::INVALID_ID;
// ensure that we go into extent hopping mode immediately
_stage->setBackwardsScanTime(0);
// We immediately switch to extent hopping mode, and
// should find the beginning of the extent
ASSERT_EQUALS(_stage->work(&id), PlanStage::ADVANCED);
ASSERT(_stage->isExtentHopping());
assertWorkingSetMemberHasId(id, 0);
}
void run() {
for(int i = 0; i < 10; ++i) {
client()->insert(ns(), BSON( "_id" << i << "ts" << i ));
}
setupFromQuery(BSON( "ts" << BSON( "$gte" << 1 )));
WorkingSetID id;
// collection scan needs to be initialized
ASSERT_EQUALS(_stage->work(&id), PlanStage::NEED_TIME);
// full collection scan back to the first oplog record
for (int i = 0; i < 9; ++i) {
ASSERT_EQUALS(_stage->work(&id), PlanStage::NEED_TIME);
ASSERT(_stage->isBackwardsScanning());
}
ASSERT_EQUALS(_stage->work(&id), PlanStage::ADVANCED);
assertWorkingSetMemberHasId(id, 0);
}
void run() {
for(int i = 0; i < 10; ++i) {
client()->insert(ns(), BSON( "_id" << i << "ts" << i));
}
setupFromQuery(BSON( "ts" << BSON( "$gte" << 1 )));
WorkingSetID id;
// ensure that we go into extent hopping mode immediately
_stage->setBackwardsScanTime(0);
// collection scan needs to initialize itself
ASSERT_EQUALS(_stage->work(&id), PlanStage::NEED_TIME);
// collection scan finds the first diskloc in
// the backwards scan
ASSERT_EQUALS(_stage->work(&id), PlanStage::NEED_TIME);
ASSERT(_stage->isBackwardsScanning());
// Now we switch to extent hopping mode, and
// should find the beginning of the extent
ASSERT_EQUALS(_stage->work(&id), PlanStage::ADVANCED);
ASSERT(_stage->isExtentHopping());
assertWorkingSetMemberHasId(id, 0);
}