Shachar Shemesh <[EMAIL PROTECTED]> writes: > I have defined a datatype called "varcharci", shamelessly yanking the > input, output, recv and send functions from varchar. This means (as far > as I understand things) that this type is binary compatible with varchar.
Use text, not varchar. > Why is that? Being as it is that no operator = is defined for varcharci, > and that the cast from varchar to varcharci is "as assignment" anyways, > shouldn't postgres be able to do the cast implicitly? Yes, it can cast to varchar, but that doesn't help because there are no varchar operators ;-). To resolve the operator, it has to promote both sides to text, and you didn't offer a cast to text. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster