On Tuesday, June 8, 2021, PG Bug reporting form <
noreply@postgresql.org> wrote:
I'd hope that PostgreSQL would infer a "timestamp" type here instead of an
interval type
It seems in this case (and possibly in bug report 17051) Postgres uses only
a section of the expression to evaluate the parameter type i.e. "$1 +
interval '1 minute'" and assumes that only an interval type can be added to
an interval type but there are a number of types that can be added to an
interval type and ideally it would take into account the result of the
expression which has to be a timestamp (because of the definition of the
timestampCol column) and so work out that the only (or best) way to achieve
that is to have $1 be of type timestamp.
Maybe, but the failure to do so does not constitute a bug.
David J.
