Thread: pgsql: Doc: mention executor memory usage for enable_partitionwise* GUC
Doc: mention executor memory usage for enable_partitionwise* GUCs Prior to this commit, the docs for enable_partitionwise_aggregate and enable_partitionwise_join mentioned the additional overheads enabling these causes for the query planner, but they mentioned nothing about the possible surge in work_mem-consuming executor nodes that could end up in the final plan. Dimitrios reported the OOM killer intervened on his query as a result of using enable_partitionwise_aggregate=on. Here we adjust the docs to mention the possible increase in the number of work_mem-consuming executor nodes that can appear in the final plan as a result of enabling these GUCs. Reported-by: Dimitrios Apostolou Reviewed-by: Ashutosh Bapat Discussion: https://postgr.es/m/3603c380-d094-136e-e333-610914fb3e80%40gmx.net Discussion: https://postgr.es/m/CAApHDvoZ0_yqwPFEpb6h261L76BUpmh5GxBQq0LeRzQ5Jh3zzg@mail.gmail.com Backpatch-through: 12, oldest supported version Branch ------ REL_13_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/5eea78af2d3c0f78b97bcaa036bccd9b28b96592 Modified Files -------------- doc/src/sgml/config.sgml | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-)