Function MustBeDString

pkg/sql/sem/tree/datum.go:1220–1226

MustBeDString attempts to retrieve a DString from an Expr, panicking if the assertion fails.

(e Expr)

// MustBeDString attempts to retrieve a DString from an Expr, panicking if the
// assertion fails.
func MustBeDString(e Expr) DString {
	i, ok := AsDString(e)
	if !ok {
		panic(errors.AssertionFailedf("expected *DString, found %T", e))
	}
	return i
}

// MustBeDStringOrDNull attempts to retrieve a DString or DNull from an Expr, panicking if the
// assertion fails.