On 9/16/10 1:18 PM, Weldon Whipple wrote:
> On Thu, Sep 16, 2010 at 9:20 AM, Konstantin Osipov<kostja@stripped> wrote:
>> * Sergei Golubchik<serg@stripped> [10/09/16 00:40]:
>>>> 2. FLUSH TABLES WITH READ LOCK FOR DATABASE dbname;
>>>>
> <snip/>
>
>>>> It flushes and locks only one database.
>>>
>>> This would be difficult to implement.
>>>
>>> FLUSH TABLES WITH READ LOCK is not implemented in a way that can be
>>> generalized to support per-database locks :(
>>
>> Actually, in 5.5 we added schema locks and now all DDL
>> takes a schema lock on the affected schema. A reliable RENAME
>> DATABASE is now possible.
>
> Ooo! That is precisely the functionality we need!
>
> I wonder how long until 5.5 goes mainstream ...
>
Will ship by the end of this calendar year (2010). Also, the schema
locking you are planning is _significantly_ easier to implement in 5.5.
Regards,
Davi
