Gerrit Fouche <gerrit.fouche@xxxxxxxxx> writes: > This is the second time I get this error since Postgresql 12 was officially > released. My version: > PostgreSQL 12.0 (Ubuntu 12.0-2.pgdg18.04+1) on x86_64-pc-linux-gnu, > compiled by gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0, 64-bit Given that this failed in an UPDATE, I suspect it's a known problem: if you have a BEFORE UPDATE row-level trigger, and a concurrent update on the same row happens, 12.0 can dump core due to a slot memory management mistake. There's a fix in 12.1, due out tomorrow. regards, tom lane
