Is tsvector_update_trigger() smart enough to not bother updating a tsvector if the text in that column has not changed?
If not, can I make my own update trigger with something like
if new.description != old.description
return tsvector_update_trigger('fti_all', 'pg_catalog.english', 'title', 'keywords', 'description');
else
return new;
or do I need to do it from scratch?
I'm seeing very high cpu load on my database server and my current theory is that some of the triggers may be causing it.
