Method is_default

src/sql/src/session/vars.rs:1057–1060

(&self, input: VarInput)

    }

    fn is_default(&self, input: VarInput) -> Result<bool, VarError> {
        let v = self.definition.parse(input)?;
        Ok(self.definition.default_value() == v.as_ref())
    }

    pub fn value_dyn(&self) -> &dyn Value {
        self.persisted_value