Would it be possible to report the integer_datetimes GUC in the V3
startup packet?
Currently if you want to use binary-format parameters or results that
might involve dates/times, you have to explicitly check
integer_datetimes first; this means another roundtrip on startup for
generic client drivers such as JDBC (they don't know if they will
encounter timestamps in results until it's too late, otherwise).
-O
