Thu May 12 23:53:11 CEST 2005
RN> I haven't used MySQL in a while, but isn't there a way to have the
RN> query format the data so it always has the decimal point? Granted,
RN> this means you're converting the result to a string in order to
RN> format it. But it looks as though you're converting a string
The way the mysql module for Erlang I'm using hands back data puts
all data into strings. The value we're talking about here is
declared as a float in the SQL, but, apparently, it thinks "3" is a
perfectly valid form for a float to be in (and by its spec, very
well could be right).
Just one of those things that violate the very rule-of-thumb Theory
of Least Surprise ("Things shouldn't leave you scratching your head
a moment saying, 'Huh.'"). Not a rarity in Erlang, but not a
game-breaker, either. As I said to Joe Armstrong off-list, it
probably wouldn't hurt for the string module to have a to_number
func that took a string of either flavour and returned a float/int
appropriately when you just don't care about the difference.
Not that its hard to write, but it can be a tiny annoyance.
Alexander Williams ()
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