cross-database time extract? - Mailing list pgsql-general

This is sort of a PostgreSQL question/sort of a general SQL question, so I apologize if this isn't the best place to ask. At any rate, I know in PostgreSQL you can issue a command like 'SELECT "time"(timestamp_column) from table_name' to get the time part of a timestamp. The problem is that this command for some reason requires quotes around the "time" function name, which breaks the command when used in SQLite (I don't know about MySQL yet, but I suspect the same would be true there). The program I am working on is designed to work with all three types of databases (SQLite, PostgreSQL, and MySQL) so it would be nice (save me some programing) if there was a single SQL statement to get the time portion of a timestamp that would work with all three. Is there such a beast? On a related note, why do we need the quotes around "time" for the function to work in PostgreSQL? the date function doesn't need them, so I know it's not just a general PostgreSQL formating difference. Thanks :)