Re: big text field -> message type 0x44

Tomas Berndtsson <tomas@nocrew.org> writes:
> After it tries again, it always gets error from recv() for some reason
> that I don't know. I also don't understand why errno is set to ENOTTY
> at this point, that makes no sense at all.

Are you sure it is set?  Try setting errno=0 just before recv() (inside
the retry loop).  Maybe recv() is neglecting to set it in this case.

I suddenly have a recollection of something about some platform failing
to set errno when using threads.  Try searching the PG archives.

> By skipping the trying again if-statement, pqReadData() will always
> return proper data, and let the calling function deal with the fact
> that there is more data to be read.

I have no confidence in this.  If the calling function comes back for
more data, why wouldn't the recv() fail the same way?  A few more
instructions in between shouldn't change its behavior, one would think.
        regards, tom lane