From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
---|---|
To: | Eric Lemoine <eric(dot)lemoine(at)oslandia(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: Performance issue with Pointcloud extension |
Date: | 2017-06-09 17:35:34 |
Message-ID: | a4b01057-d9dc-e355-7f30-6e82ad3acc56@aklaver.com |
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Thread: | |
Lists: | pgsql-general |
On 06/09/2017 09:13 AM, Eric Lemoine wrote:
> On 06/08/2017 10:41 PM, Éric wrote:
>>
>>
>>
>>> Have you experimented with other queries that don't involve PostGIS?
>>> I'm wondering if your hook-installation code fails to work properly
>>> unless PostGIS was loaded first. This would be easier to credit if
>>> there are hooks both extensions try to get into.
>>
>>
>> I think you're right on Tom. It looks like I cannot reproduce the issue if I start by calling a PostGIS function rather than a Pointcloud function. So it may well be a conflict between PostGIS and Pointcloud. Both use fn_extra, and that makes we wonder. This old thread [*] makes me wonder too! I still need to figure out the bug, but I can see some light now! thanks
>>
>> [*] <https://www.postgresql.org/message-id/flat/984D0F47C5FF4D0DB0D71A4F6EF670ED%40cleverelephant(dot)ca#984D0F47C5FF4D0DB0D71A4F6EF670ED(at)cleverelephant(dot)ca>
>
>
> I now think that the performance bug is not related to the fn_extra
> thing. I had hope but not anymore :) I don't see where the Pointcloud
> and PostGIS extensions could conflict.
>
Crank up the logging detail?:
https://www.postgresql.org/docs/9.6/static/runtime-config-logging.html#RUNTIME-CONFIG-LOGGING-WHEN
log_min_messages (enum)
https://www.postgresql.org/docs/9.6/static/runtime-config-logging.html#RUNTIME-CONFIG-LOGGING-WHAT
log_connections (boolean)
log_disconnections (boolean)
log_duration (boolean)
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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