| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Peter Geoghegan <pg(at)heroku(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Abhijit Menon-Sen <ams(at)2ndquadrant(dot)com>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>, Josh Berkus <josh(at)agliodbs(dot)com>, Ian Barwick <ian(at)2ndquadrant(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Greg Stark <stark(at)mit(dot)edu>, Jim Nasby <jim(at)nasby(dot)net>, Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at> |
| Subject: | Re: Doing better at HINTing an appropriate column within errorMissingColumn() |
| Date: | 2014-12-15 01:24:45 |
| Message-ID: | CAB7nPqSNjA31ko58UNdeALOkHOSHHKo=F+dOKDrwcOCQoxTnLA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Dec 9, 2014 at 2:52 AM, Peter Geoghegan <pg(at)heroku(dot)com> wrote:
> On Mon, Dec 8, 2014 at 9:43 AM, Peter Geoghegan <pg(at)heroku(dot)com> wrote:
>> I think it's very possible that the wrong alias may be provided by the
>> user, and that we should consider that when providing a hint.
>
> Note that the existing mechanism (the mechanism that I'm trying to
> improve) only ever shows this error message:
>
> "There is a column named \"%s\" in table \"%s\", but it cannot be
> referenced from this part of the query."
>
> I think it's pretty clear that this general class of user error is common.
Moving this patch to CF 2014-12 as work is still going on, note that
it is currently marked with Robert as reviewer and that its current
status is "Needs review".
--
Michael
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