Albe Laurenz skrev: > Tom Lane wrote: >>> I don't have handy a spec guide. Does this mean that MySQL >>> is indeed showing incorrect behavior? >> I think this is really outside the spec. > [...] >> There is not anything I can see addressing whether an >> "update" should or should not be considered to occur if a >> target column happens to not change as a result of a >> commanded update. > > Moreover, I can think of one argument why an UPDATE that > does not change the value of the row should still occur: > There may be an ON UPDATE trigger on the table that you > expect to fire whether or not the UPDATE was "optimized > away". This case seems indeed to be "broken" in MySQL. Nis ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
