Question about "no append to q2 file format"

Community Support
1

Hi, I copy an old HDB folder to another host and try to add some data on it, however, it show this error, will anyone know why?

2

Maybe you can give more details, but one possibility is that the data is written in kdb+2.x format and you need to rewrite that data as v3.x format before you can append to it using 3.x.

Another possibility is that if the data is already saved in v3.x format, it should read as a 'type error.

3

Thanks a lot Charles, it is the case, we are updated system from kdb+2.x to 3.x, the data can be read but if I need to backfill some data to old HDB folder I got this error.

So per rewrite you mean load the data to memory and write to disk again?

4

yes

5

Thanks a lot Charles