Method expr

pkg/sql/parser/sql.go:211–216

()

	return u.val.([]tree.SequenceOption)
}
func (u *sqlSymUnion) expr() tree.Expr {
	if expr, ok := u.val.(tree.Expr); ok {
		return expr
	}
	return nil
}
func (u *sqlSymUnion) exprs() tree.Exprs {
	return u.val.(tree.Exprs)
}