On Wed, Apr 27, 2005 at 05:19:32AM +0000, Patrick TJ McPhee <ptjm@xxxxxxxxxxxx> wrote a message of 37 lines which said: > but you should know that in SQL, unique constraints don't apply to > rows containing null values May be I should but I didn't. > your table definition will be as you want it, but the constraint you > want won't be there. OK, I will try to write a custom trigger, then. ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
