bool MergeFile::merge()
{
RecordKeyVector hitSet;
FileRecordMgr *frm = _context->getFile(0);
while (!frm->eof()) {
Record *key = frm->getNextRecord(&hitSet);
if (key == NULL) continue;
_recordOutputMgr->printRecord(hitSet.getKey(), _context->getColumnOpsVal(hitSet));
}
return true;
}
bool FileIntersect::processUnsortedFiles()
{
const QuickString &databaseFilename = _context->getDatabaseFileName();
BinTree *binTree = new BinTree(_context->getDatabaseFileIdx(), _context);
FileRecordMgr *queryFRM = new FileRecordMgr(_context->getQueryFileIdx(), _context);
if (!queryFRM->open()) {
return false;
}
if (!binTree->loadDB()) {
fprintf(stderr, "Error: Unable to load database file %s.\n", databaseFilename.c_str());
delete binTree;
exit(1);
}
_context->determineOutputType();
_recordOutputMgr->init(_context);
while (!queryFRM->eof()) {
Record *queryRecord = queryFRM->allocateAndGetNextRecord();
if (queryRecord == NULL) {
continue;
}
RecordKeyList hitSet(queryRecord);
binTree->getHits(queryRecord, hitSet);
if (_context->getObeySplits()) {
RecordKeyList keySet(hitSet.getKey());
RecordKeyList resultSet;
_blockMgr->findBlockedOverlaps(keySet, hitSet, resultSet);
processHits(resultSet);
} else {
processHits(hitSet);
}
queryFRM->deleteRecord(queryRecord);
}
queryFRM->close();
//clean up.
delete queryFRM;
delete binTree;
return true;
}
