Alvaro Herrera <alvherre@xxxxxxxxxxxxxx> writes: > On 2021-Jun-23, Rumpi Gravenstein wrote: >> As a best practice is it better to create the primary key starting or >> ending with the partition column? > It is not relevant from the partitioning point of view. Other factors > can be used to decide the column order. See in particular the hints in https://www.postgresql.org/docs/current/indexes-multicolumn.html The only thing that's different about partitioned situations is that any particular child partition might have only a few values of the partitioning column, which'd suggest putting it last if there are no other relevant considerations. However, if you need a particular column order to match query requirements, that's certainly going to be a more important consideration. regards, tom lane
