Re: why partition pruning doesn't work?

On 06/11/2018 06:41 PM, Andrew Dunstan wrote:
>
>
> On 06/11/2018 06:24 PM, Tom Lane wrote:
>>
>> If we had any buildfarm critters running valgrind on
>> RELCACHE_FORCE_RELEASE or CLOBBER_CACHE_ALWAYS builds, they'd have
>> detected use of uninitialized memory here ... but I don't think we have
>> any.  (The combination of valgrind and CCA would probably be too slow to
>> be practical :-(, though maybe somebody with a fast machine could do
>> the other thing.)
>>
>>
>
>
> I don't have a fast machine, but I do have a slow machine already 
> running valgrind and not doing much else :-) Let's see how lousyjack 
> does with -DRELCACHE_FORCE_RELEASE
>
>


It added about 20% to the run time. That's tolerable, so I'll leave it on.

cheers

andrew

-- 
Andrew Dunstan                https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services