Re: Proposal: Change of pg_trigger.tg_enabled and adding

Jan Wieck wrote:
> Attached is the implementation of the proposed changes as a patch for
> discussion.
> 
> The chosen syntax is backward compatible and uses
> 
> ALTER TABLE <tab> ENABLE TRIGGER <trig> (fires on origin - default)
> ALTER TABLE <tab> DISABLE TRIGGER <trig> (disabled)
> ALTER TABLE <tab> ENABLE REPLICA TRIGGER <trig> (fires on replica only)
> ALTER TABLE <tab> ENABLE ALWAYS TRIGGER <trig> (fires always)
> 

<snip>

> 
> The commands psql and pg_dump are adjusted in a backward compatible
> manner. Although I noticed that psql currently is incompatible with at
> least 8.1 databases due to querying indisvalid on \d.
> 
> Comments?

This is interesting. If I understand correctly the idea here is to be
able to determine which triggers will get fired based on the role the
database plays?

E.g; I have a REPLICA TRIGGER and thus I can use that on a
subscriber/slave to take replicated data and create reports automatically.

How do we deal with other problems such as a PROMOTED state?

Sincerely,

Joshua D. Drake





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