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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. 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 int4[]

pg_trgm

Text similarity using trigram matching

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