The GIN interface has a high level of abstraction, requiring the access method implementer only to implement the semantics of the data type

The core PostgreSQL distribution includes the GIN operator classes shown in Table 63-1. (Some of the optional

GIN assumes that indexable operators are strict. This means that extractValue will not be called at all on

Create vs. insert Insertion into a GIN index can be slow due to the likelihood of many keys

GIN stands for Generalized Inverted Index. GIN is designed for handling cases where the items to be indexed

The PostgreSQL source distribution includes GIN operator classes for tsvector

Internally, a GIN index contains a B-tree index constructed over keys, where each key is an element of one or more indexed items (a member