| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, pgsql-hackers(at)postgresql(dot)org, Amit Langote <amitlangote09(at)gmail(dot)com> |
| Subject: | Re: \d with triggers: more than one row returned by a subquery used as an expression |
| Date: | 2022-01-18 00:50:08 |
| Message-ID: | 168137.1642467008@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
I wrote:
> Justin Pryzby <pryzby(at)telsasoft(dot)com> writes:
>> Is there any reason why WITH ORDINALITY can't work ?
>> This is passing the smoke test.
> How hard did you try to break it? It still seems to me that
> this can be fooled by an unrelated trigger with the same tgname.
Hmm ... no, it does work, because we'll stop at the first trigger
with tgparentid = 0, so unrelated triggers further up the partition stack
don't matter. But this definitely requires commentary. (And I'm
not too happy with burying such a complicated thing inside a conditional
inside a printf, either.) Will see about cleaning it up.
regards, tom lane
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