Andreas Seltenreich <seltenre...@gmx.de> writes: > when fuzz testing master as of c1543a8, parallel workers trigger the > following assertion in ExecInitSubPlan every couple hours. > TRAP: FailedAssertion("!(list != ((List *) ((void *)0)))", File: > "list.c", Line: 390) > Sample backtraces of a worker and leader below, plan of leader attached. > The collected queries don't seem to reproduce it.
Odd. My understanding of the restrictions on parallel query is that anything involving a SubPlan ought not be parallelized; and this query doesn't seem to get parallelized when I try it. It seems like what you're seeing is that sometimes that restriction fails to be checked, but how could that happen? regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers