Method get

src/sql/src/session/vars.rs:541–559

Returns a [`Var`] representing the configuration parameter with the specified name. Configuration parameters are matched case insensitively. If no such configuration parameter exists, `get` returns an error. Note that if `name` is known at compile time, you should instead use the named accessor to access the variable with its true Rust type. For example, `self.get("sql_safe_updates").value()` re

(&self, system_vars: &SystemVars, name: &str)

    /// example, `self.get("sql_safe_updates").value()` returns the string
    /// `"true"` or `"false"`, while `self.sql_safe_updates()` returns a bool.
    pub fn get(&self, system_vars: &SystemVars, name: &str) -> Result<&dyn Var, VarError> {
        let name = compat_translate_name(name);

        let name = UncasedStr::new(name);
        if name == MZ_VERSION_NAME {
            Ok(&self.mz_version)
        } else if name == IS_SUPERUSER_NAME {
            Ok(&self.user)
        } else {
            self.vars
                .get(name)
                .map(|v| {
                    v.visible(&self.user, system_vars)?;
                    Ok(v.as_var())
                })
                .transpose()?
                .ok_or_else(|| VarError::UnknownParameter(name.to_string()))
        }
    }

    /// Returns a [`SessionVar`] for inspection.
    ///