Re: Postgres 12 -> 13 any need to re-index?

OK, that seems to have made a huge difference. and ran very quickly, ~15
mins on a ~1TB database. Is there a way to better understand what it did?
There's no way it rebuilt indexes in that amount of time. Also, as I said,
I never did that going from 9->10->11->12, so it's interesting to me that
it was so critical this time around.

On Tue, Feb 9, 2021 at 10:27 AM Wells Oliver <wells(dot)oliver(at)gmail(dot)com> wrote:

> Yeah. Running that now. Honestly, I went from 9 to 10 to 11 to 12 without
> doing that in prod, and it was marvelous. 13 hit a wall, and I'm not sure
> why.
>
> It's running now, though...
>
> On Tue, Feb 9, 2021 at 10:25 AM Ron <ronljohnsonjr(at)gmail(dot)com> wrote:
>
>> On 2/9/21 12:18 PM, Wells Oliver wrote:
>>
>> No, I didn't. I had done that in testing
>>
>>
>> Tsk tsk.
>>
>> and wanted to get the thing back up and running. Would i just run
>> 'analyze dbname' or something more verbose?
>>
>>
>> Essentially. I'd do something like:
>>
>> vacuumdb --analyze-only --jobs=$(nproc) -d ${YOUR_DB}
>>
>>
>> On Tue, Feb 9, 2021 at 10:17 AM Ron <ronljohnsonjr(at)gmail(dot)com> wrote:
>>
>>> On 2/9/21 12:13 PM, Wells Oliver wrote:
>>>
>>> Do you mean Ubuntu distro? I did not. My database collation is also
>>> still en_US.UTF-8, but everything has ground to a halt after the upgrade.
>>>
>>>
>>> Did you run an ANALYZE after the conversion?
>>>
>>>
>>> On Tue, Feb 9, 2021 at 10:07 AM Ron <ronljohnsonjr(at)gmail(dot)com> wrote:
>>>
>>>> On 2/9/21 12:00 PM, Wells Oliver wrote:
>>>> > Hey guys, I just upgraded a DB from 12 to 13. In testing this seemed
>>>> to go
>>>> > well, but it seems like most of my queries are not using the indexes
>>>> after
>>>> > the upgrade, so everything is quite so.
>>>> >
>>>> > Is there a general need to REINDEX after upgrading to 13, or might
>>>> there
>>>> > be another issue? The configuration parameters are the same as they
>>>> were
>>>> > persisted via pg_upgradecluster.
>>>>
>>>> Did you also change or upgrade the distro, or modify the collation?
>>>> (That's
>>>> an automatic need to rebuild indices.)
>>>>
>>>
>>
>> --
>> Angular momentum makes the world go 'round.
>>
>
>
> --
> Wells Oliver
> wells(dot)oliver(at)gmail(dot)com <wellsoliver(at)gmail(dot)com>
>

--
Wells Oliver
wells(dot)oliver(at)gmail(dot)com <wellsoliver(at)gmail(dot)com>