Function gen_column

src/expr/src/interpret.rs:1399–1423

()

    }

    fn gen_column() -> impl Strategy<Value = (ReprColumnType, Datum<'static>, ResultSpec<'static>)>
    {
        let col_type = (select(SCALAR_TYPES), any::<bool>())
            .prop_map(|(t, b)| t.nullable(b))
            .prop_filter("need at least one value", |c| {
                SqlScalarType::from_repr(&c.scalar_type)
                    .interesting_datums()
                    .count()
                    > 0
            });

        let result_spec = select(vec![
            ResultSpec::nothing(),
            ResultSpec::null(),
            ResultSpec::anything(),
            ResultSpec::value_all(),
        ]);

        (col_type, result_spec).prop_flat_map(|(col, result_spec)| {
            gen_datums_for_type(&col).prop_map(move |datum| {
                let result_spec = result_spec.clone().union(ResultSpec::value(datum));
                (col.clone(), datum, result_spec)
            })
        })
    }

    fn gen_expr_for_relation(
        relation: &ReprRelationType,