| From: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | Daniel Frey <d(dot)frey(at)gmx(dot)de> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Access last_sqlstate from libpq |
| Date: | 2021-09-17 23:45:25 |
| Message-ID: | CAKFQuwb+SoR3CtZcnsueoir0U5ozdis-o1MZP1+fLz-jozQGYQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Friday, September 17, 2021, Daniel Frey <d(dot)frey(at)gmx(dot)de> wrote:
>
>
> However, this is not possible in a couple of other cases where I don't
> have a PGresult*, only the PGconn* is available:
>
> * PQconnectdb (and variants)
>
> * PQputCopyData
> * PQputCopyEnd
> * PQgetCopyData
>
> * lo_* (large object functions)
>
> After some research, it appears that PGconn* does have a field called
> last_sqlstate - it just can't be accessed.
> Are there any problems adding a simple accessor to libpq? Or is there some
> way to access it that I'm missing?
>
I suspect the reason for the omission is that there isn’t any usable data
to be gotten. Those interfaces are not SQL interfaces and thus do not have
a relevant last_sqlstate to report.
David J.
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