Re: sqlite3

[Arthur Miller]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> I suggested hashmap serialzied to/from file. I used such approach myself for
>> key-value pairs. It worked fine for me, it was quite simple to read/write
>> it. Currently I am testing a thing, and I use just assoc list to read/write 
>> it
>> to a file, and it works fine for me too.
>
> The problem with this approach (which is the standard solution currently
> in ELisp) is that it works OK for simple cases but breaks down when:
> - there's a lot of data.
> - the data is modified by several Emacs sessions at the same time.
> This second case is what can happen with `ecomplete` or `savehist`.

I wouldn't be surprised, if several processes are involved, if that is what  you
mean with several Emacs sessions at the time, than some locking is needed of
course, and sqlite is a winner there. I believe.