maria-developers team mailing list archive

[Eric Bergen <eric.bergen@xxxxxxxxx>]

If you want to you could create a magic variable called optimizer that
would set the rest of the optimizer_* variables back to their default.
I don't like the idea of introducing dot notation only in the
optimizer variables without also changing things like query_cache_* or
ft_* It also adds a hierarchy into variables that didn't really exist
before.

On Tue, Jun 28, 2011 at 5:26 AM, Vladislav Vaintroub
<wlad@xxxxxxxxxxxxxxxx> wrote:
>
>
>> -----Original Message-----
>> From: Sergey Petrunya [mailto:psergey@xxxxxxxxxxxx]
>> Sent: Dienstag, 28. Juni 2011 08:17
>> To: Vladislav Vaintroub
>> Cc: maria-developers@xxxxxxxxxxxxxxxxxxx
>> Subject: Re: [Maria-developers] Proposal to split @@optimizer_switch
>>
>> On Tue, Jun 28, 2011 at 01:20:07AM +0200, Vladislav Vaintroub wrote:
>
>
>> Ok. What syntax should be used to set all optimizer (or
> optimizer.join_cache)
>> settings to their defaults?
>
> set optimizer_*=default
> set optimiizer_joincache_*=default
>
>>  Lots of programming languages use xxx.yyy
>> notation to denote access to member yyy of some composite entity xxx,  so
>> when one writes
>>
>>   optimizer.join_cache.bka
>>
>> it hints that 'optimizer' is an entity that you could operate on as a
> whole. If
>> we use
>>
>>   optimizer_joincache_bka
>
>> than personally for me it is not clear that 'optimizer' is an entity I
> could
>> operate on.
>
> Well, plugins variables use the underscore notation now, and plugins are
> entities.
>
> I do not find the dot notation bad, it just does not look consistent with
> the rest of variables.
>
> Wlad
>
>
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-- 
Eric Bergen
eric.bergen@xxxxxxxxx
http://www.ebergen.net