Hi, I'm not sure that it is related to information_schema but I wanted to let you know that some Postgres functions are listed in pg_proc while others are not. For example, all Data Type Formatting function are in pg_proc (to_char, to_hex, ...). While several of the Date/Time Functions are not there (extract, localtime, ...).
Why different Postgres function are not equal??? This causes issues to Windows integration as well. Konstantin