Re: Fast key range iteration

Александр Киранов wrote:

Hi all!

Is there a way to iterate with all key-value pairs in LMDB database, where all keys is in specified range? I'm trying to use mdb_cursor_get() with MDB_SET_RANGE to search first pair.

Right.

Then I see only one way - use mdb_cursor_get() with MDB_NEXT and compare key by memcmp().

For strict correctness you should be using mdb_cmp().

But it seems absolutely not effective.

I have no idea what that sentence means. What actual problem do you have?

Is there another solution for my task?

Thanks!