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Re: LMDB file size, again

On 11.11.2015 23:51, Christian Sell wrote:

You're being stupid.


let's say I am stubborn. As I mentioned, I have the requirement that the user be
able to copy the database file away on their USB stick (or send it via email,
for that matter). With SQLite, that is no problem. But with LMDB under Windows
the user is looking at a huge file, which will be unacceptable in all
likelihood. I also must allow the user to copy using file system tools, and not
some custom utility.

So I take it that LMDB is simply not designed or suitable for such a scenario.
Maybe you should consider to write your own exporter/importer. It shouldn't be too hard to walk through all key/value pairs and write out the data (prepended by their respective lengths), plus some metadata at the beginning to recognize the format on import and to know the number of records (if there is no special end-of-file marker). 

Just my two cents.

Klaus