Hi!
On Aug 14, Sergei Golubchik wrote:
On Jul 10, Sergei Golubchik wrote:
So, I'm trying to make ONLINE to mean LOCK=NONE.
And as I've realized, there can no possibly be a truly online,
LOCK=NONE ALTER TABLE operation. For example,
...
So, at best LOCK=NONE is inconsistent. But really,
Hi!
On Jul 10, Sergei Golubchik wrote:
In 5.5 we have ALTER ONLINE TABLE syntax, where ONLINE de facto means
without copying the data.
Now, after 5.6 merge we also have ALGORITHM=COPY|INPLACE and
LOCK=NONE|SHARED|EXCLUSIVE.
I've mapped ONLINE to ALGORITHM=INPLACE, because that's what
Hi,
On 8/14/2013 3:49 PM, Sergei Golubchik wrote:
Hi!
On Jul 10, Sergei Golubchik wrote:
In 5.5 we have ALTER ONLINE TABLE syntax, where ONLINE de facto means
without copying the data.
Now, after 5.6 merge we also have ALGORITHM=COPY|INPLACE and
LOCK=NONE|SHARED|EXCLUSIVE.
I've mapped
Sergei Golubchik s...@mariadb.org writes:
Unless we redefine what online mean. If not, there's no choice but
stop claming an online alter support and remove ONLINE and LOCK=NONE
from the syntax.
Opinions?
I think ONLINE should mean: no exclusive lock is taken while data is
migrated from the
HI!
IMHO,as a user (not a developer) i will show my vision about 'alter'...
i think the ONLINE is equal to: please don't lock my table and report
waiting table lock at processlist for more than 1 second or users will
kill me! =] hehe
about algorithms i think it's something related to
using this
Hi,
You've added this ALTER ONLINE TABLE syntax, where ONLINE de facto means
without copying the data.
Now, after 5.6 merge we also have ALGORITHM=COPY|INPLACE and
LOCK=NONE|SHARED|EXCLUSIVE.
I've mapped ONLINE to ALGORITHM=INPLACE, because that's what it means.
But it's confusing, one can
Hi, Jan!
On Jul 10, Jan Lindström wrote:
I really do not see why you would want to define both algorithm and
lock mode. In my transactional view ALGORITHM=COPY would mean
EXCLUSIVE lock and INPLACE would mean SHARED lock. Is there some other
lock that protects from concurrent online alter
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