presto-main/src/main/java/io/prestosql/sql/planner/NodePartitioningManager.java/NodePartitioningManager/addPartitioningProvider
class NodePartitioningManager:    public void addPartitioningProvider(CatalogName catalogName, ConnectorNodePartitioningProvider nodePartitioningProvider)
    {
        requireNonNull(catalogName, "catalogName is null");
        requireNonNull(nodePartitioningProvider, "nodePartitioningProvider is null");
        checkArgument(partitioningProviders.putIfAbsent(catalogName, nodePartitioningProvider) == null,
                "NodePartitioningProvider for connector '%s' is already registered", catalogName);
    }