Examples
| PostgreSQL 9.3.19 Documentation | ||||
|---|---|---|---|---|
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The PostgreSQL source distribution includes several examples of index methods implemented using GiST . The core system currently provides text search support (indexing for tsvector and tsquery ) as well as R-Tree equivalent functionality for some of the built-in geometric data types (see src/backend/access/gist/gistproc.c ). The following contrib modules also contain GiST operator classes:
- btree_gist
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B-tree equivalent functionality for several data types
- cube
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Indexing for multidimensional cubes
- hstore
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Module for storing (key, value) pairs
- intarray
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RD-Tree for one-dimensional array of int4 values
- ltree
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Indexing for tree-like structures
- pg_trgm
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Text similarity using trigram matching
- seg
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Indexing for "float ranges"