Section 4.8.6 of the spec has a pretty clear definition of implicit conversions in arithmetic expressions.
But the whole of 4.8 in principle only applies to the select clause.
Subsection 4.6.17.1 says that
Arithmetic operations use numeric promotion.
but doesn't explain how promotion works.
I propose moving 4.8.6 into section 4.6.17, and, possibly, pulling 4.6.17 up a level in the spec, since scalar expressions don't only occur in conditional expressions.
Section 4.8.6 of the spec has a pretty clear definition of implicit conversions in arithmetic expressions.
But the whole of 4.8 in principle only applies to the
selectclause.Subsection 4.6.17.1 says that
but doesn't explain how promotion works.
I propose moving 4.8.6 into section 4.6.17, and, possibly, pulling 4.6.17 up a level in the spec, since scalar expressions don't only occur in conditional expressions.