Re: Prepare/Declare
| От | Tom Lane |
|---|---|
| Тема | Re: Prepare/Declare |
| Дата | |
| Msg-id | 14440.1180281944@sss.pgh.pa.us обсуждение |
| Ответ на | Re: Prepare/Declare (Michael Meskes <meskes@postgresql.org>) |
| Список | pgsql-hackers |
Michael Meskes <meskes@postgresql.org> writes:
> On Thu, May 24, 2007 at 04:07:27PM -0400, Tom Lane wrote:
>> I'd be interested to see where you draw that conclusion, since
>> (a) PREPARE statements of that form are not in the standard, and
>> (b) DECLARE CURSOR is clearly defined as taking a <query expression>.
> Sorry, should have been more precise. I was talking about embedded SQL
> standard. Just look for "dynamic cursors".
Oh, I see what you're looking at. But my point here is that this
version of PREPARE has zip to do with ours: it seems more akin to
plpgsql's EXECUTE, since AFAICT you are supposed to give it a string
value that then gets parsed as a SQL statement. Also it lacks any
way to define parameters for the statement.
> I could also keep my old simultaing code for this special case, which is
> probably the best way to do it.
Yeah, I think keeping this version of PREPARE on the ecpg side is
probably best.
regards, tom lane
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