Re: [RFC] Should smgrtruncate() avoid sending sinval message for temp relations

Please find attached the revised patch.  I failed to change SIGUSR1 to
SIGUSR2 when sending sinval catchup signal.

In addition, I changed wal sender to not receive SIGUSR1/2 from
SendProcSignal().  Without this, wal sender will excessively wake up or
terminate by the signals.  This is an existing problem.

Regards
MauMau