Method parse

src/sql/src/session/vars/definitions.rs:194–196

(&self, input: VarInput)

    }

    pub fn parse(&self, input: VarInput) -> Result<Box<dyn Value>, VarError> {
        (self.parse)(input).map_err(|err| err.into_var_error(self))
    }

    pub fn default_value(&self) -> &'_ dyn Value {
        self.value.value()