Martijn van Oosterhout <klep...@svana.org> writes:
> To move the conversation along:

> https://github.com/postgres/postgres/blob/master/src/bin/psql/copy.c#L664

> Seems possibly even more robust than most people will code, but it's
> had a lot of real world testing.

Note that the looping behavior there is actually rather new, and is
probably unnecessary for 99% of applications; it would depend on what
your ambitions are for dealing gracefully with connection loss (and
even then, I think we were forced into this by pre-existing decisions
elsewhere in psql about where and how we handle connection loss).

The important thing for this question is the error reporting that
occurs at lines 692-694.

                        regards, tom lane


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