On Sat, 11 May 2024, David Rowley wrote:
On Sat, 11 May 2024 at 13:33, Tom Lane <t...@sss.pgh.pa.us> wrote:I do kind of wonder why it's producing both a hashagg and a Unique step --- seems like it should do one or the other.It still needs to make the duplicate groups from parallel workers unique.
Range partitioning of the table guarantees that, since the ranges are not overlapping. Dimitris
