To see example implementations of index methods implemented using GiST, examine the following contrib modules:
- btree_gist
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B-Tree
- cube
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Indexing for multi-dimensional cubes
- intarray
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RD-Tree for one-dimensional array of int4 values
- ltree
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Indexing for tree-like stuctures
- rtree_gist
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R-Tree
- seg
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Storage and indexed access for "float ranges"
- tsearch and tsearch2
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Full text indexing