Hi, I'm trying to figure out why does the planner found 1 row estimate using nested loops over a big table. There is no return from it:
http://explain.depesz.com/s/GRs It returns if disable nested loops, but the plan still poor: http://explain.depesz.com/s/fMY I'm using PostgreSQL 9.2.3, default_statistics_target on 1000. I can't remember what to make PostgreSQL sees a better estimate in the scan of aula_confirmacao and the join with presenca. I got rusty after a long time just doing modeling. Does someone has some idea on that? Thanks, -- Daniel Cristian Cruz クルズ クリスチアン ダニエル