No, they are the same thing as GIN indexes in PostgreSQL.[1] GIN is used to index fulltext searches, arrays and hstores (a kind of key-value map). https://devc

No, they are the same thing as GIN indexes in PostgreSQL.[1] GIN is used to index fulltext searches, arrays and hstores (a kind of key-value map). https://devcenter.heroku.com/articles/postgresql-indexes https://devcenter.heroku.com/articles/postgresql-indexes 1. Implementation might differ a bit in the details but both seem to be based on the same ideas.