"cnliou" <[EMAIL PROTECTED]> writes: > I wonder it happens to systems where inefficient update > SQL's are used like this: > UPDATE MyTable SET MyColumn=1234 > Question arises when the value of MyColumn is already 1234 > before the update.
We have to fire UPDATE triggers in any case. > If I am right, even when the to-be-updated column values > equal to the new values, the core never hates to update that > row anyway. If so, is it wise or not to adjust the core for > lazy SQL users to ignore such "meaningless" updates in order Seems like penalizing the intelligent people (by adding useless comparisons) in order to reward the "lazy" ones. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org