presto-main/src/main/java/io/prestosql/metadata/MetadataManager.java/MetadataManager/getTableStatistics
class MetadataManager:    @Override
    public TableStatistics getTableStatistics(Session session, TableHandle tableHandle, Constraint constraint)
    {
        CatalogName catalogName = tableHandle.getCatalogName();
        ConnectorMetadata metadata = getMetadata(session, catalogName);
        return metadata.getTableStatistics(session.toConnectorSession(catalogName), tableHandle.getConnectorHandle(), constraint);
    }