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Schedule - PGConf.EU 2014

Flexible Indexing with Postgres

Date: 2014-10-23
Time: 11:50–12:40
Room: Medici I
Level: Intermediate

When considering database indexing, most people think of the trade-offs of different data structures, like btree and hash. However, with Postgres, there are a wide variety of indexing structures available, and many index lookup methods with specialized capabilities. For example, GiST allows for efficient retrieval of the closest matches for unordered data, like two-dimensional points or phonetic algorithms. Gin indexing specializes in rapid lookup of keys with potentially many matches — an area where traditional btree indexes perform poorly. Gin index compression and multi-key lookup optimizations make gin even more powerful. Jsonb indexing improvements also give Postgres new power to rapidly access unstructured data.


Bruce Momjian