Hi.

Sorry for being so dense but...

The document says

The transaction handle is freed. It and its cursors must not be used again after this call, except with mdb_cursor_renew().

I am still very confused about reusing transactions.

If I commit or abort a read write transaction I can't reuse the transaction but I can re use the cursor? In the cursor documentation it says

Cursors that are only used in read-only transactions may be re-used, to avoid unnecessary malloc/free overhead.

So this indicates only read only cursors can be reused right?

So can you confirm my understanding? This is what I get from reading the docs.

A transaction can either be read write or read only.

If a transaction is read only you can commit or abort the transaction and then re-open it again for further use.

If a transaction is read write then it can't be used again after you commit or abort the transaction.

On Tue, Nov 22, 2016 at 3:17 PM, Howard Chu hyc@symas.com wrote:

Tim Uckun wrote:

...

No. You can perform multiple write operations in a single transaction.

But once the commit has been called the next write operation has to be a newly opened transaction right? The write transactions can't be re-opened.

http://lmdb.tech/doc/group__mdb.html#ga846fbd6f46105617ac9f4d76476f6597

-- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/