Simon Riggs <[EMAIL PROTECTED]> writes:
> Can you explain further what you meant by "don't disable manual
> cancels".

I meant that pg_cancel_backend() should still work on autovac workers,
contrary to Alvaro's suggestion that autovac workers should sometimes
ignore SIGINT.

Basically the implementation vision I have is that the SIGINT catcher in
an autovac worker should remain stupid, and any intelligence involved
should be on the side where we're deciding whether to send a signal or
not.  This probably does involve exposing more state in PGPROC but I see
nothing much wrong with that.  (It might be time to merge inVacuum,
isAutovacuum, and the additional state into a bitwise vacuumFlags field.)

                        regards, tom lane

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