Re: [PATCH] Log crashed backend's query (activity string)

Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Excerpts from Robert Haas's message of mar sep 06 19:57:07 -0300 2011:
>> TBH, I'm very unclear what could cause the postmaster to go belly-up
>> copying a bounded amount of data out of shared memory for logging
>> purposes only. It's surely possible to make the code safe against any
>> sequence of bytes that might be found there.

> A mishandled encoding conversion could be problematic, so that needs to
> be carefully considered (perhaps just shut off unconditionally).

That, and the question of exactly what makes the amount bounded, and
probably six other things that could go wrong. But I'm sure Andrew
won't be pleased with a proposal to inject unknown-encoding data into
the logs.

I remain of the opinion that this needs to be kept out of the postmaster.

regards, tom lane