presto-main/src/main/java/io/prestosql/transaction/InMemoryTransactionManager.java/InMemoryTransactionManager/registerCatalog
class InMemoryTransactionManager:        private synchronized void registerCatalog(Catalog catalog)
        {
            catalogsByName.put(catalog.getConnectorCatalogName(), catalog);
            catalogsByName.put(catalog.getInformationSchemaId(), catalog);
            catalogsByName.put(catalog.getSystemTablesId(), catalog);
        }