On Fri, 10 Oct 2003 13:59:38 -0500, "Thomas LeBlanc" <[EMAIL PROTECTED]> wrote: >Does a Unique Constraint build a unique index?
Yes.
>What is the difference?
A constraint is an abstract concept, an index is an implementation
detail.
Servus
Manfred
---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
