Complain if a function-in-FROM returns a set when it shouldn't. Throw a "function protocol violation" error if a function in FROM tries to return a set though it wasn't marked proretset. Although such cases work at the moment, it doesn't seem like something we want to guarantee will keep working. Besides, there are other negative consequences of not setting the proretset flag, such as potentially bad plans.
No back-patch, since if there is any third-party code violating this expectation, people wouldn't appreciate us breaking it in a minor release. Discussion: https://postgr.es/m/[email protected] Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/d4545dc19b8ea670bf62e06d22b0e4e6fcb45153 Modified Files -------------- src/backend/executor/execSRF.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
