Stefan Sperling <s...@elego.de> writes:

> On Wed, Nov 02, 2011 at 12:59:31PM +0000, Philip Martin wrote:
>> Stefan Sperling <s...@elego.de> writes:
>> 
>> > On Tue, Nov 01, 2011 at 06:36:26PM +0000, Philip Martin wrote:
>> >> Is sorting in C better than putting UNIQUE on the local_relpath column?
>> >
>> > I don't know. I don't mind either way. Let's pick whichever is faster.
>> >
>> > The notification/cancellation fix is needed in either case.
>> 
>> I think the cacellation change is wrong.  This is happening inside an
>> SQLite transaction.  When the user cancels a delete operation during
>> notification the cancel callback will return an svn_error_t causing the
>> transaction to abort.  That means that no change will have been made to
>> the database.  I don't see how postponing that abort until all the
>> notifications have been made is an improvement.
>
> The transaction is already done when notification happens.
> See wc_db.c:with_finalization() -- notification is performed by
> the work_cb() callback, not the txn_cb() callback.

OK.

I've been timing the performance on NFS working copies and I can see no
significant speed difference between using an SQLite index and sorting
in C.  So I propose to switch to the index as I believe letting the DB
do the work is better.

-- 
uberSVN: Apache Subversion Made Easy
http://www.uberSVN.com

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