O$8.0.3 plus Postgres 9.3 and 9.1
As always, my thanks to all for this information. I still don’t understand
the difference between @[…] in the SELECT, and @[…] in the WHERE.
I’m not sure the manual explains it.
Anyway, I am up and running. for now. Ta all.
On Fri, Sep 8, 2017 at 11:29 PM, Doug Easterbrook <doug@artsman.com> wrote:
> so.. what is in #S1. probably not a field name
>
> Doug Easterbrook
> Arts Management Systems Ltd.
> mailto:doug@artsman.com
> www.artsman.com
> Phone (403) 650-1978
>
> > On Sep 7, 2017, at 7:50 PM, Mike Rowan <michael.rowan3@gmail.com> wrote:
> >
> > Good point Greg. In my app however, ALL column names are unique, so that
> > is a problem that has never arisen.
> >
> > Cheers and thanks for the interest.
> >
> > On Fri, Sep 8, 2017 at 11:12 AM, Grzegorz (Greg) Pasternak <
> > grzegorz@myfastcom.ca> wrote:
> >
> >> Mike;
> >>
> >> Just a quick comment, I would advise to always fully qualify column
> names
> >> in your LEFT JOIN clause to avoid any ambiguity and consequently errors.
> >>
> >> Greg
> >>
> >>
> >> On Sep 7, 2017, at 9:37 PM, Mike Rowan <michael.rowan3@gmail.com>
> wrote:
> >>
> >>> The following slightly simplified query in which iCol1, iCol5 are as
> >>> follows:
> >>>
> >>> iCol1 integer 64 bit
> >>> iCol5 character simple char 1
> >>>
> >>> —————————————————————–
> >>> SELECT @[iCol1] AS ref, @[#S1], @[iCol5]
> >>> FROM company, branch, purchaseorder
> >>> LEFT JOIN contact ON (ct_id = po_ct_id)
> >>>
> >>> WHERE
> >>> co_id = br_co_id
> >>> AND br_id = po_br_id
> >>> AND po_invoice_nr >= 10000000
> >>> AND po_invoice_nr <= 10000100 AND ((po_type = 1) OR (po_type = 3))
> >>> ORDER BY po_invoice_nr
> >>> LIMIT 20000
> >>> ———————————————————-
> >>> results in this Error message:
> >>>
> >>> ERROR: could not determine data type of parameter $2
> >>>
> >>> As I am fairly new to SQL I’m not sure what is wrong. If I omit all
> >> terms
> >>> in the SELECT line except the first, there is no error. Any second or
> >> more
> >>> term results in the same error.
> >>>
> >>> Anyone got a minute for this one?
> >>>
> >>> Mike
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