On Fri, Mar 9, 2012 at 10:05 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Robert Haas <robertmh...@gmail.com> writes:
>> On Fri, Mar 9, 2012 at 9:22 AM, Thom Brown <t...@linux.com> wrote:
>>> Sorry, I meant any command trigger.  It's because none of the commands
>>> can be run on a standby, so the triggers don't seem appropriate.
>> I'm not convinced.  Right now, it's fairly useless - all the triggers
>> could possibly do is throw an error, and an error is going to get
>> thrown anyway, so it's only a question of which error message the user
>> will see.  But we discussed before the idea of adding a capability for
>> BEFORE triggers to request that the actual execution of the command
>> get skipped, and then it's possible to imagine this being useful.
> Um, surely the "you can't do that in a read-only session" error is going
> to get thrown long before the command trigger could be called?

Hmmm.... yeah.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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