On Thursday, July 13, 2017, ProPAAS DBA <dba(at)propaas(dot)com> wrote:
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> 2) where can I find a complete list of the tg_ variables? I see this list:https://www.postgresql.org/docs/9.4/static/plpgsql-trigger.html
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> which includes TG_NAME. OLD, NEW, etc but tg_tag and tg_event are not in the list. Are there other variables I can reference?
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They are listed at the bottom of the page you linked to.
David J.