bool HybridScanExecutor::DExecute() {
// SEQUENTIAL SCAN
if (type_ == HYBRID_SCAN_TYPE_SEQUENTIAL) {
LOG_TRACE("Sequential Scan");
return SeqScanUtil();
}
// INDEX SCAN
else if (type_ == HYBRID_SCAN_TYPE_INDEX) {
LOG_TRACE("Index Scan");
PL_ASSERT(children_.size() == 0);
if (index_done_ == false) {
if (index_->GetIndexType() == INDEX_CONSTRAINT_TYPE_PRIMARY_KEY) {
auto status = ExecPrimaryIndexLookup();
if (status == false) {
return false;
}
}
else {
return false;
}
}
return IndexScanUtil();
}
// HYBRID SCAN
else if (type_ == HYBRID_SCAN_TYPE_HYBRID) {
LOG_TRACE("Hybrid Scan");
// do two part search
if (index_done_ == false) {
if (indexed_tile_offset_ == INVALID_OID) {
index_done_ = true;
} else {
ExecPrimaryIndexLookup();
LOG_TRACE("Using index -- tile count : %lu", result_.size());
}
}
if (IndexScanUtil() == true) {
return true;
}
// Scan seq
return SeqScanUtil();
}
// FALLBACK
else {
throw Exception("Invalid hybrid scan type : " + std::to_string(type_));
}
}
bool HybridScanExecutor::DExecute() {
if (type_ == planner::SEQ) {
return SeqScanUtil();
} else if (type_ == planner::INDEX) {
// LOG_INFO("Hybrrd Scan executor, Index Scan :: 0 child");
assert(children_.size() == 0);
if (!index_done_) {
if (index_->GetIndexType() == INDEX_CONSTRAINT_TYPE_PRIMARY_KEY) {
auto status = ExecPrimaryIndexLookup();
if (status == false) return false;
} else {
return false;
}
}
return IndexScanUtil();
} else {
// do two part search
if (index_done_ == false) {
//Timer<> timer;
//timer.Start();
if (indexed_tile_offset_ == INVALID_OID) {
index_done_ = true;
} else {
ExecPrimaryIndexLookup();
}
}
if (IndexScanUtil() == true) {
return true;
}
// Scan seq
return SeqScanUtil();
}
}
