Tom Lane wrote:
>
> There are at least two bugs here: the immediate cause of the crash
> is lack of a check for heap_openr() failure in the RI trigger code,
Exactly where is that check missing (if it still is)?
> but a larger question is why the system let you drop a table that
> is the target of a referential integrity check (which I assume is
> what you did to get into this state).
For me too.
> Anyway, dropping the siteid trigger, as well as any others that
> refer to gone tables, ought to get you out of trouble for now.
> Meanwhile the foreign-key boys have some work to do ...
That's exactly the purpose of pg_trigger.tgconstrrelid, which
is filled with the opposite relations Oid for constraint
triggers. In RelationRemoveTriggers(), which is called
during DROP TABLE, theres a scan for it. That's where the
DROP TABLE implicitly drops referential ...
NOTICE message comes from. So I wonder how he got into that
state?
Jan
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