Gorm Skip creating relation records with primary keys

Describe the feature

Skip creating relation records with primary keys, for example:

var languages = map[string]*Language{
    langEN: &Language{},
    langZH: &Language{},
}

func apiCreateLang() {
        for _, lang := range languages {
            db.Create(&lang)
        }
}

func apiCreateUser() {
        db.Clauses("skip-relation-pk").
            Create(&User{
                Languages: []Language{
                    languages[langEN], languages[langZH],
                }
            })
}

INSERT INTO languages ...
-- Skip creating language object with primary key
INSERT INTO user_languages ...

Motivation

Avoid duplicate INSERT INTO

Related Issues

Would you accept this proposal? I can make pr

Comment From: github-actions[bot]

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