Craig Longman <[EMAIL PROTECTED]> writes:
> select (unitcost*probability) from oppproducttype
> ERROR: Unable to identify an operator '*' for types 'numeric' and
> 'float8'
> You will have to retype this query using an explicit cast
> is this kind of thing a regular thing for postgresql?
The problem here is that we use a very generic, datatype-independent
algorithm for resolving operator type ambiguities. It's nice and
extensible, which is great for user-defined datatypes ... but there's
really no way to handle all the standard numeric datatypes in an
intuitive fashion without introducing type-specific knowledge. We've
had discussions about fixing this in the past (see e.g. pghackers
archives from last May & June), but we've not yet come up with a
solution that satisfies everyone. It's still on the to-do list though.
regards, tom lane
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