PGCon 2012

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Finding Similar

Effective similarity search in database

Finding similar objects is an ubiquitous task in day-to-day activity of developers of informational services. We present PostgreSQL extension, which provides an effective way to find similar objects in database, as well as several usage examples. The extension provides several methods to calculate sets similarity and similarity operator with indexing support on the base of GiST and GIN frameworks.

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