hql_file.RdOpen (use) and close HDF files.
hql_use_file(file)
hql_close_file(file, all = FALSE)hql_use_file(): Open (use) an HDF file.
hql_close_file(): Close an HDF file.
if(hql_is_loaded()){
tf = tempfile(fileext = ".h5")
hql_create_file(tf)
hql_use_file(tf)
hql_flush()
hql_close_file(tf)
}