Mapping saved data

Hi. 
In my solution I’m saving data to disk from several tables independently by chunks(eg by 1m row) than clear table.

I want to map new data on disk(to make new data visible on hdb) and I can use “\l hdb”, but in this case not all tables can be exist in partition at this moment and error will occur.

Looking any advice.

For avoiding problems after “\l hdb”, I little modify save func from https://groups.google.com/forum/#!topic/personal-kdbplus/CGv5x9ek9yE.
I added check for all my tables in saving partition and upsert necessary table headers.

So if I save something, I’m sure that all tables exist now.