Is there any way to make PostgreSQL support the question mark (?) notation instead of the dollar sign ($1, $2...) for prepared statements? Most databases use the question mark notation and we have a set of simple queries that are supposed to be portable across different database systems. So far we use PostgreSQL via ODBC, but now we want to switch to a native libpq implementation.
I believe that C-function for replacing '?' with '$n' can easily implemented
in the application code. Or you may want to look at libpqtypes: