| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com>, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Amit Langote <amitlangote09(at)gmail(dot)com>, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>, Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>, Beena Emerson <memissemerson(at)gmail(dot)com>, amul sul <sulamul(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
| Subject: | Re: [HACKERS] Runtime Partition Pruning |
| Date: | 2019-05-24 15:34:58 |
| Message-ID: | 16535.1558712098@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
I wrote:
> Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> writes:
>> What do people think about adding something like this errbacktrace()
>> from Álvaro's patch to core PostgreSQL?
> I think we did discuss it right after that, or somewhere nearby, and
> concluded that the output is so imprecise that it's not really going
> to be worth whatever portability issues we'd have to deal with.
Hmm, after some digging in the archives, the closest thing I can find
is this thread:
where we discussed using libunwind instead, but people didn't like
the extra dependency.
However, I stand by the assertion that glibc's backtrace() is too
imprecise to be useful; I've experimented with it and despaired of
being able to tell where control had actually been.
regards, tom lane
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