abbas alizadeh <ramkly@xxxxxxxxx> writes: > I got “terminated by signal 11, segmentation falt” error in my database. > I’m using pg v13.7 > Query causing that error: “set client_encoding= utf-8” Hmm, that is pretty well-tested code. > There is no core file in data folder. Maybe you are starting the server under "ulimit -c 0"? See also the advice at https://wiki.postgresql.org/wiki/Generating_a_stack_trace_of_a_PostgreSQL_backend > Any idea how can I find the root case for this error? With only this amount of information, there's not much to be done. If you could get a stack trace maybe we'd have some ideas. regards, tom lane