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

Tom Lane wrote:
> "Postgres User" <postgres.developer@gmail.com> writes:
> > On 3/1/07, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> >> "Postgres User" <postgres.developer@gmail.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@momjian.us>          http://momjian.us EnterpriseDB
http://www.enterprisedb.com
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