"Bryan White" <bryan@arcamax.com> writes:
> As a result of this event, in the log file I see:
> ---------------
> Server process (pid 21764) exited with status 139 at Mon Jul 31 14:51:44
Status 139 indicates a SEGV trap on most Unixen. There should be a core
dump left by the crashed backend --- can you get a backtrace from it
with gdb?
I concur that this probably indicates corrupted data in the file. We
may or may not be able to guess how it got corrupted, but a stack trace
seems like the place to start.
regards, tom lane