Re: jsonb format is pessimal for toast compression

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От Josh Berkus
Тема Re: jsonb format is pessimal for toast compression
Дата
Msg-id 54245004.10606@agliodbs.com
обсуждение исходный текст
Ответ на Re: jsonb format is pessimal for toast compression  (Heikki Linnakangas <hlinnakangas@vmware.com>)
Ответы Re: jsonb format is pessimal for toast compression  (Andres Freund <andres@2ndquadrant.com>)
Список pgsql-hackers
On 09/25/2014 10:20 AM, Andres Freund wrote:
> On 2014-09-25 10:18:24 -0700, Josh Berkus wrote:
>> On 09/25/2014 10:14 AM, Bruce Momjian wrote:
>>> On Thu, Sep 25, 2014 at 06:01:08PM +0200, Andres Freund wrote:
>>>> But independent of which version is chosen, we *REALLY* need to make the
>>>> decision soon. This issue has held up the next beta (like jsonb has
>>>> blocked previous beta) for *weeks*.
>>>>
>>>> Personally it doesn't make me very happy that Heikki and Tom had to be
>>>> the people stepping up to fix this.
>>>
>>> I think there are a few reasons this has been delayed, aside from the
>>> scheduling ones:
>>>
>>>     1.  compression issues were a surprise, and we are wondering if
>>>         there are any other surprises
>>>     2.  pg_upgrade makes future data format changes problematic
>>>     3.  9.3 multi-xact bugs spooked us into being more careful
>>>
>>> I am not sure what we can do to increase our speed based on these items.
>>
>> Alternately, this is delayed because:
>>
>> 1. We have one tested patch to fix the issue.
>>
>> 2. However, people are convinced that there's a better patch possible.
>>
>> 3. But nobody is working on this better patch except "in their spare time".
>>
>> Given this, I once again vote for releasing based on Tom's lengths-only
>> patch, which is done, tested, and ready to go.
> 
> Heikki's patch is there and polished.

If Heikki says it's ready, I'll test.  So far he's said that it wasn't
done yet.


-- 
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com



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