Row level deletion information is included in the row level isolation. 

Cheers


-----------------
Aaron Morton
Freelance Developer
@aaronmorton

On 5/06/2012, at 6:05 AM, Todd Burruss wrote:

I don't think I'm being clear.  I just was wondering if a "row delete" is
isolated with all the other inserts or deletes to a specific column family
and key in the same batch.

On 6/4/12 1:58 AM, "Sylvain Lebresne" <sylvain@datastax.com> wrote:

On Sun, Jun 3, 2012 at 6:05 PM, Todd Burruss <bburruss@expedia.com> wrote:
I just meant there is a "row delete" in the same batch as inserts - all
to
the same column family and key

Then it's the timestamp that will decide what happens. Whatever has a
timestamp lower or equal to the tombstone timestamp will be deleted
(that stands for insert in the batch itself).

--
Sylvain




-----Original Message-----
From: Sylvain Lebresne [sylvain@datastax.com]
Received: Sunday, 03 Jun 2012, 3:44am
To: user@cassandra.apache.org [user@cassandra.apache.org]
Subject: Re: batch isolation

On Sun, Jun 3, 2012 at 2:53 AM, Todd Burruss <bburruss@expedia.com>
wrote:>
1 does this mean that a batch_mutate that first sends a "row delete"
mutation on key X, then subsequent insert mutations for key X is
isolated?

I'm not sure what you mean by having "a batch_mutate that first sends
... then ...", since a batch_mutate is a single API call.

2 does isolation span column families for the same key  within the
same
batch_mutate?

No, it doesn't span column families (contrarily to atomicity). There
is more details in
http://www.datastax.com/dev/blog/row-level-isolation.

--
Sylvain