PostgreSQL 8.3.1 Documentation
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# 52.6. Examples

The PostgreSQL source distribution includes GIN operator classes for `tsvector` and for one-dimensional arrays of all internal types. The following `contrib` modules also contain GIN operator classes:

hstore

  Module for storing (key, value) pairs

intarray

  Enhanced support for int4[]

pg_trgm

  Text similarity using trigram matching

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