Method require_feature_flag

src/sql/src/plan/query.rs:6744–6746

(&self, flag: &'static FeatureFlag)

    }

    pub fn require_feature_flag(&self, flag: &'static FeatureFlag) -> Result<(), PlanError> {
        self.qcx.scx.require_feature_flag(flag)
    }

    pub fn param_types(&self) -> &RefCell<BTreeMap<usize, SqlScalarType>> {
        &self.qcx.scx.param_types