Hi! In C Language, there is a way to format float numbers into a hex string by using "%a" in printf. eg: the value: 1.2345 can be expressed as '0x1.3c083126e978dp+0' which is the hex representation of a float number.
I have tried this in Postgres: SELECT '0x1.3c083126e978dp+0'::float; float8 -------- 1.2345 (1 row) This means that Postgres can accepty hex float as *input*. However I cannot find any format function for *output*. to_char(..., ...) does not have "%a"-like format. Is there any way to do that? Thank you in advance. -- ShenLei
