void Database::CompactIndex(const string& index_name, lsn_t snapshot_lsn) {
if (snapshot_lsn == indices[index_name]->GetLastPersistentLSN()) {
return; // nothing to do
}
LookupIterator snapshot = indices[index_name]->GetSnapshot(snapshot_lsn);
ImmutableIndexWriter* writer = ImmutableIndex::Create(
GetIndexPrefix(name, index_name), snapshot_lsn, 64*1024);
while (snapshot.hasMore()) {
writer->Add((*snapshot).first, (*snapshot).second);
++snapshot;
}
writer->Finalize();
}
void EXPECT_KEY_ADVANCE(
LookupIterator& it,
const babudb::Buffer& key, const babudb::Buffer& value) {
EXPECT_TRUE(it.hasMore());
if (!((*it).first == key)) {
string found((char*)(*it).first.data, (*it).first.size);
string expected((char*)key.data ,key.size);
EXPECT_TRUE(false);
}
if (!((*it).second == value)) {
string found((char*)(*it).second.data, (*it).second.size);
string expected((char*)value.data, value.size);
EXPECT_TRUE(false);
}
++it;
}