Google appengine datastore filter with OR like sql (golang)

[aymane...@gmail.com]

I have a struct

type Test struct{
Name      string
Creation  time.Time
User      *datastore.Key
Membres   []*datastore.Key
}

I want equivalent of this sql query in datastore query

SELECT * FROM Test WHERE User=myOwnUser OR myOwnUser in(Membres)

Thank's