Re: Remove mention in docs that foreign keys on partitioned tablesare not supported

alvherre=# select tgname, tgrelid::regclass, tgisinternal from pg_trigger;
 tgname │ tgrelid │ tgisinternal
────────┼─────────┼──────────────
 trig_p │ parent  │ f
 trig_p │ child   │ t
 trig_c │ child   │ f
(3 filas)

So there is a trigger in table child, but it's hidden because
tgisinternal.  Of course, you can see it if you look at the parent's
definition:

alvherre=# \d parent
               Tabla «public.parent»
 Columna │  Tipo   │ Collation │ Nullable │ Default
─────────┼─────────┼───────────┼──────────┼─────────
 a       │ integer │           │          │
Partition key: RANGE (a)
Triggers:
    trig_p AFTER INSERT ON parent FOR EACH ROW EXECUTE PROCEDURE noise()
Number of partitions: 1 (Use \d+ to list them.)

I think it'd be useful to have a list of triggers that have been
inherited from ancestors, or maybe simply a list of internal triggers

Or maybe this is not something to worry about?