Function AsDOid

pkg/sql/sem/tree/datum.go:3547–3555

AsDOid attempts to retrieve a DOid from an Expr, returning a DOid and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DOid wrapped by a *DOidWrapper is possible.

(e Expr)

// be used instead of direct type assertions wherever a *DOid wrapped by a
// *DOidWrapper is possible.
func AsDOid(e Expr) (*DOid, bool) {
	switch t := e.(type) {
	case *DOid:
		return t, true
	case *DOidWrapper:
		return AsDOid(t.Wrapped)
	}
	return NewDOid(0), false
}

// MustBeDOid attempts to retrieve a DOid from an Expr, panicking if the
// assertion fails.