On Thu, Feb 25, 2016 at 1:09 PM, Robert Haas <robertmhaas@gmail.com> wrote:
> On Thu, Feb 25, 2016 at 8:53 AM, Amit Kapila <amit.kapila16@gmail.com> wrote:
>>> But if the user says
>>> they want to PREPARE the query, they are probably not going to fetch
>>> all rows.
>>
>> After PREPARE, user will execute the statement using EXECUTE and
>> I don't see how user can decide number of rows to fetch which can
>> influence the execution. Can you please elaborate your point more
>> and what is your expectation for the same?
>
> Argh. I'm getting confused between prepared statements and cursors.
> So if the user does PREPARE followed by EXECUTE, then that is OK. The
> problem is only if they use DECLARE .. CURSOR FOR, which your patch
> doesn't affect.
>
> So, committed.
And, I'm going to revert this part. If you'd run the regression tests
under force_parallel_mode=regress, max_parallel_degree>0, you would
have noticed that this part breaks it, because of CREATE TABLE ... AS
EXECUTE.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
