orm.go
func (s *Schema) Index(name string, options ...IndexOption) *Index {
	if index, ok := s.indexes[name]; ok {
		return index
	}
	indexOptions := &IndexOptions{}
	indexOptions.addOptions(options...)
	return s.indexWithOptions(name, 0, indexOptions)
}
func (s *Schema) Index(name string, options ...IndexOption) *Index {
	if index, ok := s.indexes[name]; ok {
		return index
	}
	indexOptions := &IndexOptions{}
	indexOptions.addOptions(options...)
	return s.indexWithOptions(name, 0, indexOptions)
}
func ( s * Schema ) Index ( name string , options ... IndexOption ) * Index { if index , ok := s . indexes [ name ] ; ok { return index } indexOptions := & IndexOptions { } indexOptions . addOptions ( options ... ) return s . indexWithOptions ( name , 0 , indexOptions ) }
// Index returns an index with a name.
Index returns an index with a name .