Bo Lorentsen <[EMAIL PROTECTED]> writes: > Do you have any idea to how I may learn more about function types, or is > this a "read the source, luke" thing (I am not sure I have time for that > right now) ?
http://developer.postgresql.org/docs/postgres/xfunc-volatility.html regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
