Supported versions: 16 / 15 / 14

Unsupported versions: 13 / 12 / 11 / 10 / 9.6 / 9.5 / 9.4 / 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3 / 8.2

Historical version. PostgreSQL 9.1 has reached end of support. 2016-10-27. See the current manual.

54.6. Examples

The PostgreSQL source distribution includes GIN operator classes for tsvector and for one-dimensional arrays of all internal types. Prefix searching in tsvector is implemented using the GIN partial match feature. The following contrib modules also contain GIN operator classes:

btree_gin: B-tree equivalent functionality for several data types
hstore: Module for storing (key, value) pairs
intarray: Enhanced support for int[]
pg_trgm: Text similarity using trigram matching

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Read the upstream documentation. For corrections, first check the current manual.