> "Richard" == Richard Guo writes:
Richard> Hi all,
Richard> During the reorder of grouping sets into correct prefix order,
Richard> if only one aggregation pass is needed, we follow the order of
Richard> the ORDER BY clause to the extent possible, to minimize the
Richard> chance that
> "Andres" == Andres Freund writes:
>> During the reorder of grouping sets into correct prefix order, if
>> only one aggregation pass is needed, we follow the order of the
>> ORDER BY clause to the extent possible, to minimize the chance that
>> we add unnecessary sorts. This is
Hi,
On 2019-06-17 17:23:11 +0800, Richard Guo wrote:
> During the reorder of grouping sets into correct prefix order, if only
> one aggregation pass is needed, we follow the order of the ORDER BY
> clause to the extent possible, to minimize the chance that we add
> unnecessary sorts. This is
Hi all,
During the reorder of grouping sets into correct prefix order, if only
one aggregation pass is needed, we follow the order of the ORDER BY
clause to the extent possible, to minimize the chance that we add
unnecessary sorts. This is implemented in preprocess_grouping_sets -->
