Gmail <dmitry(dot)telpt(at)gmail(dot)com> writes:
> Just a question, will the fix be back-ported to current supported branches like 9.4/9.5/9.6 or only included in 12?
I back-patched it, see
https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=bf2efc55da9a1a33da32fa383db9db2f2c49b2cb
regards, tom lane