Align names used in utility db functions in Oracle and PostgreSQL
Over the years, the names used in the function for PostgreSQL and Oracle drifted away, which is a problem when using call-by-name convention for stored procedures. Furthermore, recent Oracle versions do not allow attributes named "table" (for table_name). So the longer version is now used uniformily. Fortunately, nsf allow abbreviation for named parameters (like Tcl does), such one can use both "-table_name" and "-table".