On Mon, Jun 27, 2016 at 3:33 PM, Tom Lane wrote:
> Robert Haas writes:
>> On Sun, Jun 26, 2016 at 10:35 PM, Noah Misch wrote:
>>> The above-described topic is currently a PostgreSQL 9.6 open item ("consider
>>> whether MinMaxAggPath might fail to be parallel-safe").
>
>> Currently, MinMaxAggPath
Robert Haas writes:
> On Sun, Jun 26, 2016 at 10:35 PM, Noah Misch wrote:
>> The above-described topic is currently a PostgreSQL 9.6 open item ("consider
>> whether MinMaxAggPath might fail to be parallel-safe").
> Currently, MinMaxAggPath is never parallel-safe; the question is
> whether we cou
On Sun, Jun 26, 2016 at 10:35 PM, Noah Misch wrote:
>> I looked into this and found that the costs are considered fuzzily the
>> same, and then add_path prefers the slightly-worse path on the grounds
>> that it is marked parallel_safe while the MinMaxAgg path is not. It seems
>> to me that there
