Alvaro Herrera <[EMAIL PROTECTED]> writes:
> We could have the postmaster signal the launcher, but the signal cannot
> contain much useful info because the postmaster does generally not want
> to write in shared memory.

The postmaster already touches/writes in shared memory in pmsignal.c.
The trick here is that whatever it does should be sufficiently
constrained that arbitrarily-bad corruption of shared memory can't
crash or freeze the postmaster.  If you can meet that restriction,
feel free to introduce some more signaling knowledge.

                        regards, tom lane

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not

Reply via email to