GIN What is it GIN 是一種 INDEX 可以幫助加速全文搜索的速度 GIN stands for Generalized Inverted Index. GIN is designed for handling cases where the items to be indexed are composite values, and the queries to be handled by the index need to search for element values that appear within the composite items. For example, the items could be documents, and the queries could be searches for documents containing specific words. Normal SQL 在傳統 SQL 下可以用以下幾個步驟完成建立 GIN INDEX