presto-main/src/main/java/io/prestosql/transaction/InMemoryTransactionManager.java/InMemoryTransactionManager/getCatalogMetadata
class InMemoryTransactionManager:    @Override
    public CatalogMetadata getCatalogMetadata(TransactionId transactionId, CatalogName catalogName)
    {
        return getTransactionMetadata(transactionId).getTransactionCatalogMetadata(catalogName);
    }