# Django 1.11.dev20170112000130 documentation

# PostgreSQL specific model indexes

The following are PostgreSQL specific indexes available from the `django.contrib.postgres.indexes` module.

## `GinIndex`

class `GinIndex`

  Creates a gin index.

  To use this index on data types not in the built-in operator classes, you need to activate the btree_gin extension on PostgreSQL. You can install it using the `BtreeGinExtension` migration operation.