Method AttachedLbugDatabase

src/main/attached_database.cpp:49–79

}

AttachedLbugDatabase::AttachedLbugDatabase(std::string dbPath, std::string dbName,
    std::string dbType, ClientContext* clientContext)
    : AttachedDatabase{std::move(dbName), std::move(dbType), nullptr /* catalog */} {
    auto vfs = common::VirtualFileSystem::GetUnsafe(*clientContext);
    if (DBConfig::isDBPathInMemory(dbPath)) {
        throw common::RuntimeException("Cannot attach an in-memory Lbug database. Please give a "
                                       "path to an on-disk Lbug database directory.");
    }
    auto path = vfs->expandPath(clientContext, dbPath);
    // Note: S3 directory path may end with a '/'.
    if (path.ends_with('/')) {
        path = path.substr(0, path.size() - 1);
    }
    if (!vfs->fileOrPathExists(path, clientContext)) {
        throw common::RuntimeException(
            std::format("Cannot attach a remote Lbug database due to invalid path: {}.", path));
    }
    catalog = std::make_unique<catalog::Catalog>();
    validateEmptyWAL(path, clientContext);
    storageManager = std::make_unique<storage::StorageManager>(path, true /* isReadOnly */,
        clientContext->getDBConfig()->enableChecksums, *storage::MemoryManager::Get(*clientContext),
        clientContext->getDBConfig()->enableCompression,
        clientContext->getDBConfig()->enableDefaultHashIndex, vfs);
    transactionManager =
        std::make_unique<transaction::TransactionManager>(storageManager->getWAL());

    storageManager->initDataFileHandle(vfs, clientContext);
    if (storageManager->getDataFH()->getNumPages() > 0) {
        storage::Checkpointer::readCheckpoint(clientContext, catalog.get(), storageManager.get());
    }
}

} // namespace main
} // namespace lbug