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This function provides a way of generating version 4 (pseudorandom) UUIDs based on pgcrypto's PRNG. The main reason for doing this is that the OSSP UUID library depended on by contrib/uuid-ossp is becoming more and more of a porting headache, so we need an alternative for people who can't install that. A nice side benefit though is that this implementation is noticeably faster than uuid-ossp's uuid_generate_v4() function. Oskari Saarenmaa, reviewed by Emre Hasegeli
10 lines
307 B
SQL
10 lines
307 B
SQL
/* contrib/pgcrypto/pgcrypto--1.0--1.1.sql */
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-- complain if script is sourced in psql, rather than via ALTER EXTENSION
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\echo Use "ALTER EXTENSION pgcrypto UPDATE TO '1.1'" to load this file. \quit
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CREATE FUNCTION gen_random_uuid()
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RETURNS uuid
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AS 'MODULE_PATHNAME', 'pg_random_uuid'
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LANGUAGE C VOLATILE;
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