Hi, While working on 40efbf870 I noticed that when performing a Hash Join that we always start out by setting nbatch to 1. That seems reasonable as it's hard to imagine being able to complete any non-zero amount of work in fewer than 1 batch.
In the HashAgg case, since 40efbf870, we'll display: "HashAgg Batches": 0, if you do something like: explain(analyze, format json) select distinct oid from pg_class; I'd rather this said that the number of batches was 1. Does anyone have any objections to that being changed? David
