LMDB Seek (move the cursor) without read

Question

I would like to know whether it is possible to move the cursor forward for, say, n positions without retrieving data at the same time (i.e. lowering i/o load).

I am aware of mdb_cursor_get but it seems to retrieve the data from disk at each call in combination with MDB_NEXT.

Your help is very much appreciated!

score 2 · Accepted Answer · answered Oct 28 '15 at 16:24

2

Pass a NULL pointer for the data argument and it will skip the retrieval. In practice, for small records that all fit on a leaf page, there will be no performance difference since this is mmap'd and zero-copy.

answered Oct 28 '15 at 16:24

hyc

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LMDB Seek (move the cursor) without read

1 Answers1