On Mon, Apr 11, 2016 at 7:15 PM, Karl O. Pinc <k...@meme.com> wrote: > > Should I submit a regression test or something to ensure > that this usage is officially supported? (A grep for > PQsetSingleRowMode in src/test/ finds no hits.) > Can I assume because it's documented it'll continue to work?
Pretty much. > > Not sure about the part > > where you call PQsetSingleRowMode() again after seeing > > PGRES_TUPLES_OK: doesn't look to me like you need or want to do > > that. You should only call it immediately after PQsendQuery(). > > You're quite right. All but the first PQsetSingleRowMode() > calls fail. > > This seems unfortunate. What if I submit several SQL statements > with one PQsendQuery() call and I only want some of the statements > executed in single row mode? I would assume that if you know for which of the statements you want the single row mode, then you as well can submit them as separate PQsendQuery() calls. > I'm not sure what the use case > would be but it seems sad that PQsetSingleRowMode() is per > libpq call and not per sql statement. It is per query, where query == "argument to PQsendQuery()" :-) > When the docs here say "query" what they really mean is "set of > statements submitted in a single libpq call". Which are the same things more or less, I'm not sure that the extended explanation you suggest makes it less confusing. -- Regards, Alex
