On 2022-Aug-19, Justin Pryzby wrote:
> That would be a memory leak or some other bug, except that it also seems to be
> dead code ?
>
> https://coverage.postgresql.org/src/backend/commands/trigger.c.gcov.html#1166
>
> Is it somwhow possible to call CreateTrigger() to create a FOR EACH ROW
> trigger, with an index, and not internally ?
TBH I don't remember this at all anymore.
So apparently the way to get a trigger associated with a relation
(tgconstrrelid) is via CREATE CONSTRAINT TRIGGER, but there doesn't
appear to be a way to have it associated with a specific *index* on that
relation (tgconstrindid). So you're right that it appears to be dead
code.
If the regression tests don't break by removing it, I agree with doing
that.
--
Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/
"La libertad es como el dinero; el que no la sabe emplear la pierde" (Alvarez)