pub fn is_supported_signed_to_unsigned_coercion(
request_type: ColumnDataType,
target_type: ColumnDataType,
) -> boolExpand description
The signed→unsigned integer coercions that let the built-in data models
move from unsigned to signed integers while existing unsigned tables keep
accepting new signed ingest without an ALTER TABLE (see the pair
descriptions in the module-level comment above). Kept as one predicate so
the trace and log ingest paths share the same supported pair set and
cannot drift.