MDBX_GET_BOTH not returning MDBX_NOTFOUND for missing value

[kriszyp]

Using mdbx_cursor_get with MDBX_GET_BOTH on a MDBX_DUPSORT database, where the provided key exists and has values, but the provided value does not exist for the key, will return 0.
Expected behavior: MDBX_GET_BOTH should position the cursor at exactly the key and value provided, and if the exact key/value dooes not exist, it should return MDBX_NOTFOUND (this is the behavior in LMDB with MDB_GET_BOTH, which does return MDB_NOTFOUND if the key/value does not exist).

[erthink]

I will check this.
As a temporary solution, I suggest you try MDBX_SET_LOWERBOUND, maybe it will be more convenient.

[kriszyp]

That works great, thank you!

[erthink]

@kriszyp, thank you for reporting.

[kriszyp]

No problem, thanks for the quick response. The JS library, lmdbx-js (formerly called lmdbx-store) is really stabilizing and working well with libmdbx, I think, and I am hoping to add support for Deno soon.