fn scalar(j: &mut Json, key: &str, v: &str)Expand description
Type a filter value the way its text reads.
Ids stay strings whatever they look like: a 16-hex-digit span id made
entirely of decimal digits parses as an integer, and comparing a
FixedSizeBinary column against one matches nothing at all — silently,
because an inapplicable term is defined to return no rows rather than an
error.