Mark constantly allocated dest receiver as const.
This allows the compiler / linker to mark affected pages as read-only.
Doing so requires casting constness away, as CreateDestReceiver()
returns both constant and non-constant dest receivers. That's fine
though, as any modification of the statically allocated receivers
would already have been a bug (and would now be caught on some
platforms).
Discussion: https://postgr.es/m/20181015200754.7y7zfuzsoux2c4ya@alap3.anarazel.de
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/93ca02e00560ad6553fbd8ebabb7d5349e98ade8
Modified Files
--------------
src/backend/tcop/dest.c | 33 +++++++++++++++++++++------------
1 file changed, 21 insertions(+), 12 deletions(-)