Re: Fix Error Message for allocate_recordbuf() Failure

On Tue, Sep 20, 2016 at 9:25 PM, Michael Paquier
<michael(dot)paquier(at)gmail(dot)com> wrote:
> On Wed, Sep 21, 2016 at 12:32 AM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>> For what it's worth, I think it's fine. Good error messages are a useful thing.
>>
>> More generally, I think the whole patch looks good and should be committed.
>
> Hm. I'd think that it is still more portable to just issue a WARNING
> message in palloc_extended() when MCXT_ALLOC_NO_OOM then. Other code
> paths could benefit from that as well, and the patch proposed does
> nothing for the other places calling it. I am fine to write a patch
> for this purpose if you agree on that.

No, I strongly disagree with that. I think when you pass
MCXT_ALLOC_NO_OOM, you're saying that you are prepared to deal with a
NULL return value. It becomes your job to decide whether to emit any
log message and which one to emit. If palloc_extended() insists on
emitting a warning regardless, the caller can't now emit a more
specific message without creating redundant log chatter.

--
Robert Haas
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