22 Feb
2012
22 Feb
'12
1:34 p.m.
On 21 February 2012 11:51, Mats Rauhala
You mentioned that haskelldb was the first library where you weren't forced to break the abstraction. Do you have a solution to a situation where you might want to retrieve the last inserted id after an insert?
That's a case where I would consider modifying haskelldb-hdbc-postgresql, for example, to export an insertReturningId or whatever, because some other engines don't support returning an ID, and it wouldn't make sense to return Maybe Int or error for the ones that don't support it. This way it's well-typed.