Re: Skip trigger? - Mailing list pgsql-general

From hamann.w@t-online.de
Subject Re: Skip trigger?
Date
Msg-id wolfgang-1160501141810.A021479@linux-f7v9
Whole thread Raw
In response to Re: Skip trigger?  (Manuel Gómez <targen@gmail.com>)
List pgsql-general
>> On Sat, Apr 30, 2016 at 1:38 AM,  <wolfgang@alle-noten.de> wrote:
>> > I have a table with a row update trigger that is quite slow.
>> > The trigger finction basically sets some bits in a "changed" column
>> > depending on which values really changed.
>> > For some bulk updates it can be determined in advance that the
>> > trigger function will not have any effect.
>> > Is there any way to run an update query and specify that it should not
>> > activate the trigger.
>> > I know that I can disable the trigger and reenable it later;
>> > however other concurrent updates mights need it
>>
>> Indeed the main issue is how you want to handle concurrency.  ALTER
>> TABLE statements to disable triggers works and is transactional, but
>> locks the table, which may be undesired.  Here are some useful
>> pointers: http://blog.endpoint.com/2015/07/selectively-firing-postgres-triggers.html
>>
Hi Manuel,

many thanks ... this seems to be just what I was looking for. I will give it a try tomorrow

Regards
Wolfgang Hamann





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