On 5/3/17 21:23, Igor Korot wrote:
> Hi, ALL,
> [quote]
> Nearly all libpq functions will set a message for PQerrorMessage if
> they fail. Note that by libpq convention, a nonempty PQerrorMessage
> result can consist of multiple lines, and will include a trailing
> newline. The caller should not free the result directly. It will be
> freed when the associated PGconn handle is passed to PQfinish. The
> result string should not be expected to remain the same across
> operations on the PGconn structure.
> [/quote]
>
> Since there may be multiple errors, I presume that in this case the string
> will end with just \0, correct? It's not going to be \0\0 like with MSVC.
I don't know what you mean by \0\0 with MSVC, but it is correct that the
error message string will end with \0, like any C string.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services