Re: [GENERAL] Fun with Cursors- how to rewind a cursor

Tom Lane wrote:
> "Postgres User" <postgres(dot)developer(at)gmail(dot)com> writes:
> > On 3/1/07, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> >> "Postgres User" <postgres(dot)developer(at)gmail(dot)com> writes:
> >>> <before opening cursor> ref_entry = 'c_entry';
> >>> <after looping thru cursor> MOVE Backward All In c_entry;
> >>
> >> You have to use EXECUTE for the latter.
>
> > I had tried several variations of MOVE Backward inside an Execute
> > statement earlier. And now, I'm seeing this error appear again:
> > ERROR: 0A000: cannot manipulate cursors directly in PL/pgSQL
>
> Hm, you're right. This arises from the fact that _SPI_execute_plan
> rejects cursor-related utility statements. While I'd never stopped
> to question that before, it does seem like this restriction is a
> bit pointless. Does anyone remember why it's like that?

Is there anything to do on this item?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

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