Heikki Linnakangas <hlinnakan...@vmware.com> wrote:

> Well, it's fairly harsh if the feature isn't working as
> advertised.

Right -- there are people counting on serializable transaction to
avoid data corruption (creation of data which violates the business
rules which they believe are being enforced).  A tuple freeze at
the wrong moment could currently break that.  The patch allows the
guarantee to hold.  The fact that this bug is only seen if there is
a very-long-running transaction or if VACUUM FREEZE is run while
data-modifying transactions are active does not eliminate the fact
that without this patch data can be corrupted.

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


-- 
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers

Reply via email to